JP2000166025A - Electric motor car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a car body decelerating and stopping brake unnecessary and to enhance the safety and convenience of a car on the occasion of use by causing the car body to be at a standstill when a manual feed mode is set, and canceling the standstill state of the car body if an accelerator is operated in this condition. SOLUTION: Unless an accelerator lever 14 is operated in a manual feed mode, a car body stopping brake is operated, i.e., an electromagnetic brake is applied, and a car body 1 becomes at a standstill. If neither a running/manual feed changeover switch 10 nor the accelerator lever 14 is operated in this condition, the standstill state continues, but it can be shifted to a running mode immediately, if the running/manual feed changeover switch 10 is changed over to 'running'. Besides, if an accelerator input is changed over to 'running', i.e., if the accelerator lever 14 is operated in the manual feed mode, the car stopping brake is released, i.e., the electromagnetic brake is released, and dynamic braking is not applied either, so it is possible to move and run the car body 1 by slight force. Consequently, it becomes possible to make the stopping brake unnecessary, and to enhance the safety and convenience on the occasion of use.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a traveling mode in which a driving wheel is driven to rotate by a motor, such as an electric three-wheeled vehicle or an electric wheelchair, and a manual pushing mode in which the vehicle is manually moved without using a motor. Involved in electric vehicles,
In particular, it relates to the improvement of the manual pushing mode.

[0002]

2. Description of the Related Art Japanese Patent Laid-Open Publication No.
There is one disclosed in Japanese Patent No. 172704.

In this prior art, an electromagnetic brake release switch is provided for releasing the electromagnetic brake when a manual push is performed (in a manual push mode). When a signal is input from the electromagnetic brake release switch, the electromagnetic brake is released,
The power generation braking by the motor is also released so that it can be manually pushed with a small force. Further, in this state, when the traveling speed exceeds a predetermined value, the power generation braking by the motor is applied, so that the safety is improved.

[0004] Further, there is a brake device for decelerating and stopping the vehicle body, that is, a brake device having a manual brake.

[0005]

As described above, in the prior art, when the mode is switched from the running mode to the manual pushing mode, the brake device for stopping the vehicle body such as the electromagnetic brake is opened.

However, in the above-mentioned state, stopping on a downhill or an uphill is to stop and maintain a heavy body (about 100 kg), and it is difficult to perform the stop manually. Even if a brake device (manual brake) is provided, it is difficult, and there have been problems in safety and usability.

Accordingly, the present invention has been made to solve such a problem, and the vehicle body can be reliably stopped when the mode is switched to the manual pushing mode. It is an object of the present invention to provide an electric vehicle with improved safety and ease of use.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a driving mode in which a driving wheel is driven to rotate by a motor and travels, Mode switching means for switching between these modes, accelerator means for setting a traveling speed in the traveling mode, and setting the vehicle body to a stopped state when the accelerator means is not operated in the traveling mode. An electric vehicle equipped with a vehicle body stopping means,
When the mode switching means is set to the manual pushing mode, the vehicle body is set to a stop state by the vehicle body stopping means, and control means for releasing the vehicle body stopping means when the accelerator means is operated in this state. It is characterized by the following.

[0009] Further, there is provided a notifying means for notifying that the mode setting means is set to the manual pushing mode.

[0010] Further, a speed detecting means for detecting a speed is provided, and a predetermined upper limit speed is determined in advance. The control means determines that a speed detected by the speed detecting means in the manual pushing mode is equal to or higher than the upper limit speed. When the vehicle stops, the vehicle body stopping means is operated.

In addition to the above, there are provided speed detecting means for detecting a speed, and braking means for performing braking for deceleration, and a predetermined speed limit is determined in advance. When the speed detected in step (b) is equal to or higher than the speed limit, the braking means is operated.

In addition, a speed detecting means for detecting a speed and a braking means for applying a braking for deceleration are provided, and a speed limit corresponding to an operation amount of the accelerator means is determined in advance. When the speed detected by the speed detecting means is equal to or higher than a speed limit corresponding to the operation amount of the accelerator means in the manual pushing mode, the braking means is operated.

[0013] Further, the invention is characterized in that power generation braking by the motor is used as the braking means.

Further, an upper limit speed higher than the limit speed is determined in advance, and the control unit activates the vehicle body stopping unit when the speed detected by the speed detection unit in the hand pushing mode is equal to or higher than the upper limit speed. It is characterized by operating.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an external view of an electric three-wheeled vehicle according to an embodiment of the present invention.

The electric three-wheeled vehicle of this embodiment is provided with driving wheels (rear wheels) 2 which are driven to rotate by a motor, which will be described later, on both sides of a rear portion of a vehicle body 1 and one front wheel 3 at a front portion. I have.

The front wheel 3 is connected to a handle shaft 4, and a handle 5 whose both sides are bent in a U-shape is attached to the upper end of the handle shaft 4, and the handle 5 is operated left and right. , The front wheel 3 moves in the left-right direction, and the vehicle can be steered.

A floor portion 6 is provided between the front wheel 3 and the drive wheel 2 to put a foot on when a user gets on the vehicle, and the floor portion 6 extends forward and backward (not shown). On top is fixedly attached what is formed of resin.

A cover 7 for storing a battery, a motor, a deceleration function, and the like is provided behind the floor section 6, and a seat 8 on which a user rides is mounted thereon.

A recess 9 is formed in the upper part of the front side of the cover 7 and below the seat 8, and a switch 10 for switching between a traveling mode and a manual pushing mode is provided therein. I have. In the present embodiment, a toggle switch, which is an operation holding switch, is used as the travel-hand-push switch 10. In addition, the concave portion 9 provided with the traveling-hand-push changeover switch 10 is configured to be opened and closed by a switch cover 11 for preventing erroneous operation of the switch.

On the other hand, a display panel 12 for displaying the remaining amount of the battery, the running speed, the forward / backward movement, etc., and a switch 12b for instructing the forward / backward movement are attached to the center of the handle 5. Power on /
A power switch 13 for turning off is also provided. On both sides of the display panel 12, an accelerator lever 14 which is connected by a shaft and operates integrally is attached. When the accelerator lever 14 is pressed from above, the accelerator lever 14 is moved in the forward direction based on the switch 12b for instructing the forward and backward movement. The vehicle advances at a speed corresponding to the amount by which the accelerator lever 14 is pressed. In the present embodiment, the existing battery remaining amount indicator lamp 12a is made to blink without newly providing a buzzer, a lamp, or the like as an informing unit for informing the hand pressing mode.

FIG. 2 is a block diagram showing the control unit and its peripheral circuits according to this embodiment.

The microcomputer (hereinafter abbreviated as “microcomputer”) 20 that constitutes the control means of the present invention receives, as inputs, a link between the travel-hand switch switch 10 and the power switch 13 and the accelerator lever 14. Then, signals from a potentiometer 21 for detecting the operation amount and a motor speed detection circuit 23 for detecting the rotation speed of the motor 22 are input.

The output includes a signal for controlling a motor drive circuit 24 for driving the motor 22, a signal for controlling a brake drive circuit 26 for driving the electromagnetic brake 25, and a display drive circuit 27 for driving the display panel 12. Is output. The signals for controlling the motor drive circuit 24 include a normal motor drive signal for controlling the rotation speed of the motor 22, a power generation braking signal for performing power generation braking by the motor 22, and a motor forward / reverse rotation for switching the motor 22 between normal rotation and reverse rotation. There is a reverse / reverse signal. In the present embodiment, in addition to the existing signal for controlling the display drive circuit 27 for driving the display panel 12, a signal for blinking the battery remaining amount display lamp 12a in the manual pushing mode is output. .

The power switch 13 is directly connected to the battery 28. When the power switch 13 is turned on, the relay coil 29 connected to the power switch 13 is excited, and the power relay switch 30 is turned on. Become. When the power relay switch 30 is turned on, the power from the battery 28 can be supplied to the motor 22, and a constant voltage such as 5 V DC is applied to the microcomputer 20, the traveling-hand-push switch 10, and the potentiometer 21 of the accelerator lever 14. The power of the battery 28 is supplied to the power supply circuit 31 to be supplied.

Next, a description will be given of a control example of the present embodiment configured as described above.

First, a first basic control example will be described with reference to the flowchart shown in FIG.

When the power switch 13 is turned on, the electric-powered three-wheeled vehicle does not operate unless the traveling-hand pushing changeover switch 10 is set to "traveling" (YES in decision 100 to decision 101). NO loop). Further, if the vehicle enters the running mode and the accelerator input is "stop", that is, the accelerator lever 14 is not operated and the motor rotation is not "stopped", the hand pushing mode in the present invention does not operate ( YES of judgment 101 → processing 102 → NO of judgment 103 or judgment 104
loop).

For example, when the power is turned on while the travel-hand-push switch 10 is in the "hand-push" state, the travel-hand-push switch 10 must be set to "run" and then switched to "hand-push" before it operates. Will be.

In the running mode, the motor 22 rotates in accordance with the operation amount of the accelerator lever 14 as in the prior art.
When the vehicle travels at a speed corresponding to the operation amount and the operation of the accelerator lever 14 is stopped, the electromagnetic brake 25 operates to stop the vehicle.

In the traveling mode, when the traveling-hand pushing switch 10 is switched to "hand pushing" while the motor rotation is "stop" with the accelerator input "stop", the mode is entered into the hand pushing mode (YES in decision 103 to decision 104). YE
S → NO in decision 105 → process 106).

If the accelerator lever 14 is not operated even in the manual pushing mode, the vehicle body stopping brake is closed, that is, the electromagnetic brake 24 is applied, and the vehicle body 1 is stopped (NO in the judgment 107 → process 108). Therefore, the vehicle can be stopped reliably on any downhill or uphill, and when switching from running mode to hand pushing mode on a sloping road, it is possible to prevent a dangerous situation in which the vehicle starts running without permission, greatly improving safety. To improve.

In this state, the traveling-hand pushing switch 1
If neither 0 nor the accelerator lever 14 is operated, the stopped state continues (NO in decision 109 → process 106 → decision 10).
7), the traveling mode can be immediately shifted to the traveling mode by switching the traveling-hand pushing changeover switch 10 to “traveling” (YES in the determination 109 → the processing 102).

On the other hand, in the manual pushing mode, when the accelerator input "runs", that is, when the accelerator lever 14 is operated, the brake for stopping the vehicle body is released, that is, the electromagnetic brake 25 is released, and the power generation braking is not applied. (Y in the judgment 107).
ES → process 110).

In the manual pushing mode (process 106), the battery level indicator lamp 12a on the display panel 12 blinks. The hand pushing mode in the present invention is unfamiliar because the operation is similar to that in the running mode in that the electromagnetic brake 25 works and stops completely when the accelerator lever is not operated, and the vehicle can move and move when the accelerator lever 14 is operated. It is easy for the user to misunderstand, but by doing as described above, the user can easily recognize that the mode is the hand pushing mode. It can be seen from the display of the travel / hand push switch 10 shown in FIG.
In order to prevent erroneous operation and the like, the hand-operated changeover switch 10 is located at a lower part of the seat 8 where it is difficult to see, and may be covered by the switch cover 11, so that the display panel positioned in front of the user as described above. It is effective to blink the battery remaining amount display lamp 12a of the unit 12.

By the way, when the brake-releasing switch 10 is switched to "running" at the time of releasing the brake in the process 110, if the accelerator lever 14 is operated, forcible starting is prevented to prevent a sudden running. (YES in judgment 111 → YES in judgment 112 → process 113). However, if the accelerator-lever 14 is not operated when the travel-hand-push switch 10 is switched to "travel", a situation in which the vehicle suddenly starts running does not occur, and the mode is automatically switched to the travel mode (YES in the determination 111). → NO in decision 112 → process 102). In addition, even if the vehicle is forcibly stopped in the above, if the traveling-hand pushing changeover switch 10 is returned to "hand pushing", it is possible to return to the original hand pushing mode (the processing 113 → NO of the judgment 114 → the processing 10).
6), the stop state is maintained if the traveling-hand pushing changeover switch 10 remains “traveling” (YES of the determination 114 →
Decision 112).

By controlling as described above, the vehicle body 1 can be reliably stopped when the mode is switched to the manual pushing mode, and the traveling can be shifted to the traveling by a simple and natural operation of operating the accelerator lever 14. Safety and usability are greatly improved. In addition, there is also a cost reduction effect that eliminates the need for a vehicle deceleration and stop brake device, that is, a manual brake.

Next, a second control example of the present embodiment will be described with reference to the flowchart shown in FIG. Note that the same processes as those in the first control example are denoted by the same reference numerals.

In this control example, an upper limit speed which becomes a dangerous speed in this electric three-wheeled vehicle, for example, an upper limit value A1 of the motor speed corresponding to 6 km / h is determined in advance, and it is determined whether or not the accelerator input is "running" in the manual pushing mode. Check (judgment 10
After YES in 7), a check (judgment 115) is made as to whether or not the value is equal to or higher than the motor speed A1. If the value is not equal to or more than the A1 value, the vehicle-body stopping brake is released (process 110) as in the first control example, and if the value is equal to or more than the A1 value, the vehicle-body stopping brake is closed (process 116).
The electromagnetic brake 25 is applied to stop the vehicle. Other processes are the same as those in the first control example.

By controlling in this way, it is possible to reliably prevent the speed from exceeding the upper limit speed and falling into a dangerous state when the vehicle is manually pushed on a downhill or the like. improves.

Next, a third control example of the present embodiment will be described with reference to the flowchart shown in FIG. Note that the same processes as those in the first control example are denoted by the same reference numerals.

In this control example, a limit speed A2 corresponding to a motor rotation speed corresponding to 4 km / h, for example, which is a speed limit at which the electric tricycle can be safely pushed by hand, is determined in advance. After YES in the check (judgment 107), a check (judgment 117) is made as to whether or not the value is equal to or higher than the motor rotation speed A2 value. If the value is not equal to or larger than the A2 value, the brake for stopping the vehicle body is released (step 110) as in the first control example, and if the value is equal to or larger than the A2 value, the brake for stopping the vehicle body is released (step 118).
Is performed, the deceleration speed control by the dynamic braking (processing 11
By performing 9), the hand-held traveling speed is maintained within a safe speed limit by the dynamic braking by the motor 22. Other processes are the same as those in the first control example.

By controlling in this way, even if the vehicle is manually pushed on a downhill or the like, the speed can be kept within a safe speed limit. become able to.

Next, a fourth control example of the present embodiment will be described with reference to the flowchart shown in FIG. Note that the same processes as those in the first control example are denoted by the same reference numerals.

In this control example, in this electric three-wheeled vehicle, a speed limit corresponding to the operation amount of the accelerator lever 14, for example, 0
The motor speed corresponding to .about.4 km / h is determined in advance, and after YES in the check (decision 107) as to whether or not the accelerator input is "running" in the manual pushing mode, it is determined whether or not the motor speed is equal to or more than the accelerator instruction speed. The check (judgment 120) is put. If the speed is not equal to or higher than the accelerator instruction speed, the vehicle-body stopping brake is released (process 110) as in the first control example, and if the speed is equal to or higher than the accelerator instruction speed, the vehicle-body stopping brake is released (process 121). later,
By performing deceleration speed control (process 122) by dynamic braking,
The hand-held traveling speed is maintained within the speed limit corresponding to the accelerator operation by the dynamic braking by the motor 22. Other processes are the same as those in the first control example.

By controlling in this way, the accelerator lever 14 can safely and flexibly respond to the optimum hand pushing speed according to the degree of inclination of the downhill or the uphill, the physical strength of the user, and the like. Become.

In the third control example and the fourth control example, the motor 2 is used for braking within the speed limit in the manual pushing mode.
By using the dynamic braking by the method 2, the conventional dynamic braking by the motor can be used, so that the above-described operation and effect can be realized simply and at low cost.

In the above-described second to fourth control examples, the safety is improved by a single stop or speed control, but the speed is limited to within the speed limit performed in the third or fourth control example. In addition to the speed control described above, the vehicle stop control at the upper limit speed performed in the second control example may be performed.

By performing such control, safe and smooth hand-moving traveling can be performed within the speed limit, and a dangerous state can be prevented even on a steep downhill which cannot be braked by the power generation braking by the motor 22. And safety is further improved.

In the above-described embodiment, the mode-switching means includes a traveling-hand-switching switch 10 using a torque switch.
However, the present invention is not limited to this, and can be realized by using other various switches.

For example, as shown in FIG. 7, a traveling-hand pushing switch 50 using a push switch which is a self-returning switch may be used. In this case, it is possible to recognize whether the traveling or hand pushing has been switched. Therefore, LEDs 51 and 52 that light up correspondingly are provided. The other parts are the same as in the embodiment of FIG. 1, and are denoted by the same reference numerals as in FIG.

The control circuit in this case is as shown in FIG. That is, instead of the travel-hand pushing changeover switch 10 using the toggle switch of the control circuit shown in FIG. 2 of the above-described embodiment, as shown in FIG. LED 51 and LED 5 illuminated in running mode
2 is interposed between the power supply circuit 31 and the microcomputer 20. The other parts are the same as in the embodiment of FIG. 2, and are denoted by the same reference numerals as in FIG.

As described above, the use of the traveling-hand-push changeover switch 50 using a push switch does not change the control relating to the gist of the present invention, but requires a slight change in the control relating to switch switching.

FIG. 9 is a flowchart showing a control example corresponding to the first control example (FIG. 3) of the embodiment in this case. The same reference numerals are given to the same controls as in FIG.

In the case of the travel-hand pushing changeover switch 50 using the push switch, it is not possible to determine whether the traveling-hand pushing is performed when the power is turned on. Therefore, there is no check such as the judgment 101 in FIG. The process is started from the running mode (YES in the determination 100 → the process 102).

In the traveling mode, similarly to the above-described embodiment, the switching from the traveling mode to the hand pushing mode cannot be performed unless the accelerator input is "stop" and the motor rotation is "stop", that is, the accelerator input is zero and the motor speed is not zero. (Process 102 → N of Judgment 103 or Judgment 104)
O loop).

In the running mode, when the accelerator input is "stop" and the motor rotation is "stop",
When there is an input of the hand-push changeover switch 50, the apparatus enters the hand-push mode (YES in judgment 103 → YES in judgment 104 → YES in judgment 105a → process 106).

In the above-mentioned judgment 105a, whether or not there is an input of the traveling / hand-switching switch 50, the rising A and the falling B of the pulse input signal by the push switch are checked as shown by the timing waveforms in FIG. To detect a switch input, and is determined at the falling B of the pulse input.

The subsequent control is performed at a check point (decision 109) as to whether or not there is an input of the travel-manual push switch 50.
a, 111a, and 114a), except that the same control as described above is performed.

Also in this case, the same operation and effect as in the above embodiment, that is, when the mode is switched to the manual pushing mode, the vehicle 1
Can be reliably stopped, and the operation can be shifted to traveling by a simple and natural operation of operating the accelerator lever 14, so that safety and usability are remarkably improved.

FIG. 10 is a flowchart showing a control example corresponding to the second control example (FIG. 4) of the above embodiment. The same reference numerals are given to the same controls as in FIG.

In this case, the control is the same as the control in FIG. 4 of the above embodiment except for the above-described control change by replacing the travel-hand pressing changeover switch 50 with the push switch, so that the same operation and effect can be obtained. . That is, it is possible to reliably prevent the speed from exceeding the upper limit speed and falling into a dangerous state when the vehicle is manually pushed downhill.

FIG. 11 is also a flow chart showing a control example corresponding to the third control example (FIG. 5) of the above embodiment. The same control as in FIG. 5 is denoted by the same reference numeral.

Also in this case, the control is the same as the control in FIG. 5 of the above-described embodiment except for the above-described control change by replacing the travel-hand-push changeover switch 50 with the push switch. Can be That is, even if the vehicle is manually pushed on a downhill or the like, the speed can be kept within a safe speed limit, so that the hand-traveling traveling on a downhill or the like can be performed safely and smoothly.

FIG. 12 is a flow chart showing a control example corresponding to the fourth control example (FIG. 6) of the above-mentioned embodiment. The same control as in FIG. 6 is denoted by the same reference numeral.

In this case, similarly, the control is the same as the control in FIG. 5 of the above-described embodiment except for the above-described control change by replacing the travel-hand-push changeover switch 50 by the push switch. can get. That is, the accelerator lever 14 can safely and flexibly respond to the optimal hand pushing speed according to the degree of inclination of the downhill or the uphill, the physical strength of the user, and the like.

Also, when the travel-manual push switch 50 using a push switch is used as described above, the speed limit within the speed limit performed in the third control example (FIG. 11) or the fourth control example (FIG. 12) is used. The same operation and effect can be obtained by performing the stop control at the upper limit speed performed in the second control example (FIG. 10) in addition to the speed control of the second control example. In other words, it is possible to perform safe and smooth hand-moving travel within the speed limit, and to prevent a dangerous state from falling into a dangerous state even on a steep downhill that cannot be braked by the power generation braking by the motor 22, thereby further improving safety. .

In each of the above embodiments, the existing battery remaining amount indicator lamp 12a on the display panel 12 is made to blink as a notifying means for notifying that the manual pressing mode is set. Alternatively, a new dedicated hand-push mode display lamp may be provided, or a sound generator such as a buzzer may be provided to notify the user.

[0070]

As described above, according to the present invention, when the mode switching means is set to the manual pushing mode, the vehicle body is set to the stopped state by the vehicle body stopping means, and when the accelerator means is operated in this state. Since the vehicle body stopping means is released, the vehicle body can be reliably stopped even when the mode is switched to the hand pushing mode on a slope or the like. The usability is greatly improved. Further, the effect that the brake device (manual brake) for decelerating and stopping the vehicle body is not required can be obtained.

Further, by providing the notifying means for notifying that the mode setting means is set to the hand pushing mode, the user can easily recognize the hand pushing mode without misunderstanding the driving mode. Can be.

Further, when the speed detected by the speed detecting means in the hand pushing mode is equal to or higher than a predetermined upper limit speed, the vehicle body stopping means is operated so that the speed is reduced when the hand pushing is performed on a downhill or the like. Can surely be prevented from falling into a dangerous state by exceeding the upper limit speed.

When the speed detected by the speed detecting means in the hand pushing mode is equal to or higher than a predetermined speed limit, the braking means is operated so that the speed can be safely controlled even if the hand is pushed downhill. Since the vehicle can be held within a limited speed limit, it is possible to safely and smoothly perform hand-moving traveling on downhills and the like.

When the speed detected by the speed detecting means in the manual pushing mode is equal to or higher than the speed limit corresponding to the operation amount of the accelerator means, the braking means is operated.
The accelerator means can safely and flexibly respond to the optimal hand pushing speed according to the degree of inclination of a downhill or an uphill, the physical strength of the user, and the like.

Further, the above-described operation and effect can be realized simply and at low cost by using the electric power generation braking by the motor as the braking means.

Further, when the speed detected by the speed detecting means is equal to or higher than the upper limit speed in the hand pushing mode, the vehicle body stopping means is operated so that the hand pushing movement can be performed safely and smoothly within the speed limit. In addition to this, it is possible to prevent the vehicle from falling into a dangerous state even on a steep downhill that cannot be braked by the braking means, thereby further improving safety.

[Brief description of the drawings]

FIG. 1 is an external view of an electric tricycle according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a control unit and its peripheral circuits of the embodiment.

FIG. 3 is a flowchart showing a first control example in the embodiment.

FIG. 4 is a flowchart showing a second control example in the embodiment.

FIG. 5 is a flowchart showing a third control example in the embodiment.

FIG. 6 is a flowchart showing a fourth control example in the embodiment.

FIG. 7 is an external view of an electric tricycle according to another embodiment of the present invention.

FIG. 8 is a block diagram showing a control unit and peripheral circuits according to another embodiment.

FIG. 9 is a flowchart illustrating a first control example according to the other embodiment.

FIG. 10 is a flowchart showing a second control example according to the other embodiment.

FIG. 11 is a flowchart illustrating a third control example according to the other embodiment.

FIG. 12 is a flowchart illustrating a fourth control example according to the other embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Drive wheel 3 Front wheel 5 Handle 10 and 50 Run-hand switch switch 12 Display panel 12a Battery remaining amount display lamp 13 Power switch 14 Accel lever 20 Microcomputer 21 Potentiometer 22 Motor 23 Motor speed detection circuit 24 Motor drive circuit 25 Electromagnetic brake 26 Brake drive circuit 27 Display drive circuit 28 Battery 30 Power relay switch 31 Power circuit 51, 52 LED

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5H115 PA08 PC06 PG06 PG10 PI13 PI29 PU02 QE01 QE06 QE10 QE12 QH08 QI03 QI07 QN03 RB08 RB19 SE03 SF02 TB01 TI02 TO01 TO21 TO23 TO30 TU08 TZ07 UB05 5H530 AA10 CC20 CC08

Claims (7)

[Claims] 1. A mode switching means which has a traveling mode in which a driving wheel is driven to rotate by a motor and travels, and a manual pushing mode in which the vehicle is moved by manual pushing without using the motor, and which switches between these modes, An electric vehicle comprising: accelerator means for setting a traveling speed in a mode; and vehicle body stopping means for setting a vehicle body to a stopped state when the accelerator means is not operated in the traveling mode, wherein the mode switching means is When the manual pushing mode is set, the vehicle body is set to a stop state by the vehicle body stopping means, and control means is provided for releasing the vehicle body stopping means when the accelerator means is operated in this state. Electric car. 2. The electric vehicle according to claim 1, further comprising a notifying unit for notifying that the mode setting unit is set to the manual pushing mode. 3. A speed detecting means for detecting a speed, and a predetermined upper limit speed is determined in advance. The control means determines that a speed detected by the speed detecting means in the manual pushing mode is equal to or higher than the upper limit speed. 3. The electric vehicle according to claim 1, wherein the vehicle body stopping means is operated when the vehicle stops. 4. A speed detecting means for detecting a speed, and a braking means for performing braking for deceleration, and a predetermined speed limit is determined in advance. The electric vehicle according to claim 1 or 2, wherein the braking means is operated when the speed detected in (1) is equal to or higher than the speed limit. 5. A vehicle comprising: speed detecting means for detecting a speed; braking means for braking for deceleration; and a speed limit corresponding to an operation amount of the accelerator means, which is determined in advance. 3. The braking device according to claim 1, wherein the braking device is operated when a speed detected by the speed detecting device in the manual pushing mode is equal to or higher than a speed limit corresponding to an operation amount of the accelerator device. Electric car. 6. The electric vehicle according to claim 4, wherein the braking means uses power generation braking by the motor. 7. An upper limit speed higher than the limit speed is determined in advance, and the control unit activates the vehicle body stopping unit when the speed detected by the speed detection unit in the hand pushing mode is equal to or higher than the upper limit speed. The electric vehicle according to any one of claims 4 to 6, wherein the electric vehicle is operated.