JPH0554862U - Auto change - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention aims to provide an automatic change capable of reliably preventing erroneous operation of a reverse switch and ensuring safety and durability. [Construction] The present invention provides a reverse switch for switching a transmission to a reverse range in an automatic change for generating a switching signal from a switch operating section to drive an actuator and switching the transmission to a predetermined shift range. It is characterized in that a lid for covering this is provided.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an automatic change that electrically changes gears, and more particularly to an automatic change that can prevent an erroneous operation of a reverse switch.

[0002]

[Prior Art]

 In a conventional vehicle, a gear shift operation device has been widely used in which a change lever operation is transmitted to a transmission by a cable or a rod to perform a gear shift operation.

On the other hand, with the recent breakthrough in computer technology, a variable speed range is selected by operating a switch, a drive signal is generated based on the selection, and an actuator such as a drive motor is driven to park the transmission. Various auto-changes that can be switched to a P, reverse R, neutral N, drive D, second S, or low L gear range have been put into practical use. Further, in this type of automatic change, there has been proposed one in which the shift range of the parking P is automatically changed when the vehicle is stopped (see, for example, Japanese Utility Model Laid-Open No. 60-168629).

The above automatic change requires six switches corresponding to each shift range of parking P, reverse R, neutral N, drive D, second S, or low L. On the other hand, in the method of automatically switching to the parking range P, the switch corresponding to the parking range P can be omitted, but five switches corresponding to other ranges are required.

[0005]

[Problems to be solved by the device]

 However, in this type of auto change, the driver often operates the switch by looking while looking forward, and considering the switch operability while traveling, the operating space of the switch is relatively limited, The switch operation unit is inevitably small, and if 6 or 5 switches are provided in the small switch operation unit, there is a risk of erroneous switch operation. In particular, if the reverse switch is mistakenly operated while driving in the drive range D or the second range S, a sudden braking force will act on the vehicle and the passenger will be thrown forward, or an excessive load will be applied to the gears of the transmission. It is feared that the gears may be damaged due to the action.

In view of the above point, an object of the present invention is to provide an auto change capable of reliably preventing an erroneous operation of a reverse switch.

[0007]

[Means for Solving the Problems]

 Therefore, the auto change according to the present invention is described as follows: "In order to switch the transmission to the reverse range in the automatic change in which the actuator is driven by generating the switching signal from the switch operating unit to switch the transmission to the predetermined shift range, The reverse switch has a lid that covers the reverse switch so that it can be freely opened and closed. "

Here, the lid may be pivotally supported to be opened and closed, or may be slid to be opened and closed. Further, it is preferable to provide a spring member for urging the lid body in the closing direction so as not to keep it open, but in the case of a slide type, it may be closed by its own weight. Further, the reverse switch may have any structure such as a push button type, a dial type and a lever type. Further, although a drive motor can be used as the actuator, other drive sources may be used.

[0009]

[Action]

 In the present invention, since the reverse switch is provided with the lid, the reverse switch cannot be operated unless the lid is opened, and the operation different from other switches is required. Is never operated.

[0010]

【Example】

 Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 7 show an automatic change according to an embodiment of the present invention. In the figure, a lever switch 1 for performing an up-shift / down-shift operation is provided on the right side in the vicinity of the steering wheel S, and the lever switch 1 is driven by operating the lever 1a upward in FIG. Is turned on, and the drive down switch 1c is turned on by downward operation.

The instrument panel P on the left side of the steering wheel S is provided with a push-type reverse switch 2 for performing a reversing operation. In this reverse switch 2, as shown in FIGS. 6 and 7, a step portion 21 is formed in the case 20, and a concave portion 22 is formed in the central portion, and an operation button 23 can be pressed in the concave portion 22. A switch (not shown) is provided below the operation button 23. Further, the case 20 is provided with a lid 24 for closing the upper end surface thereof, and the lid 24 is rotatably supported on the upper edge of the case 20 by a hinge 25, and the hinge 25 is closed with the lid 24. A spring member (not shown) that urges the device to rotate in the direction is provided.

The switching signals of the lever switch 1 and the reverse switch 2 are processed by the vehicle-mounted control unit 3.

A drive signal is generated from the control unit 3 to rotate the main or sub drive motors 4a and 4b in the actuator 4, and the rotation is changed by gears to swing the operation lever 4c. The wire 4d connected to the operation lever 4c is pushed and pulled to shift the transmission 5.

Further, in FIG. 3, 1b and 1c are switch portions of the lever-type switch 1 on the shift-up side and the shift-down side, 2 is a reverse switch, 6 is an indicator for displaying a shift range, and 7a is an ON / OFF of the ignition. Ignition switch for detecting OFF, 7b for parking brake switch for detecting operation of parking brake, 7c for brake switch for detecting depression of brake pedal, 7d for seat belt switch for detecting seat belt installation, and 7e for vehicle speed. A vehicle speed sensor for detecting the speed change, 7f to 7k are inhibitor switches for detecting the shift range of the transmission 5, 7l and 7m are rotary encoders for detecting the rotation angle of the drive motors 4a and 4b. The signals of 2, 7a-7m are the above-mentioned control. Is input to the unit 3.

The control unit 3 is composed of a microcomputer, and functionally has functions of reverse control means, shift up / down control means, automatic parking control means, and automatic neutral control means.

That is, the reverse control means outputs a drive signal to the drive motors 4a and 4b so that the transmission 5 is switched to the reverse range R when the reverse switch 2 is turned on when the vehicle speed is 3 km / h or less. A control signal is generated which also causes the indicator 6 to light "R". This is to prevent the vehicle from being suddenly braked and the gears of the transmission 5 from being damaged due to an excessive load.

Further, the shift-up / down control means controls the transmission 5 to be up-shifted between the drive range, the second range and the low range when the drive-up switch 1b is turned on. When the transmission is turned on, drive signals are generated for the drive motors 4a and 4b so that the transmission 5 is downshifted between the drive, second and low ranges, and the indicators 6 are "L" and "S". A control signal for lighting "D" is generated. Further, in order to prevent the gears of the transmission 5 from being damaged, when the transmission 5 is in the reverse range R and the vehicle speed is 3 km / h or less, when the drive down switch 1c is ON, the transmission 5 drives and the second Alternatively, a drive signal is generated for the drive motors 4a, 4b so as to be controlled to the low gear range, and the drive signal for switching from the second range S to the low range L has a vehicle speed of 100 km in order to ensure safety. It is designed to be generated only when / h or less.

Further, when the ignition is OFF, the vehicle speed is 3 km / h or less, the vehicle speed is 3 km / h or less, the seat belt is removed, and the brake pedal is released, the automatic parking control means described above. , Or when the parking brake is operated at a vehicle speed of 3 km / h or less and the brake pedal is released, a drive signal is generated for the drive motors 4a and 4b so that the transmission 5 is in the parking range. It has become.

In the automatic neutral control means, when the vehicle speed is 3 km / h or less, the transmission 5 is set to the drive range D, and the brake pedal is operated, the drive up switch 1b is turned on. A drive signal is generated for the drive motors 4a and 4b so that the transmission 5 is automatically switched to the neutral range when it is opened.

Next, the operation will be described with reference to FIG. FIG. 5 shows a flow chart of the main routine of the control system in this embodiment.

In the control unit 3, as shown in FIG. 5, first, a control system is initially set (step S1), signals of various switches are input (step S2), and an automatic parking process is performed (step S1). In step S3), the switching signals of the drive up switch 1b, the drive down switch 1c and the reverse switch 2 are determined (steps S4 to S6), and the shift up routine, automatic neutral routine, shift down are performed according to the determination results. A routine or a reverse routine is performed to switch the transmission to a predetermined range (steps S7 to S10).

Next, the processing contents of each routine will be described. "Automatic parking process" In the automatic parking routine, the ignition is OFF and the vehicle speed is 3 km / h based on the signals of the ignition switch 7a, the parking brake switch 7b, the brake switch 7c, the seat belt switch 7d, and the vehicle speed sensor 7e. Whether it is below or not, whether the seat belt is removed and the brake pedal is released at a vehicle speed of 3 km / h or less, or the parking brake is activated and the brake pedal is released at a vehicle speed of 3 km / h or less. It is determined whether or not the driving is performed, and the driving signal is generated only when any of the conditions is satisfied, the driving motors 4a and 4b are operated, and the transmission 5 is switched to the parking range. At the same time, a control signal is generated for the indicator 6, and the "P" display of the indicator 6 showing that the gear is being shifted to the parking range is turned on.

[Shift Up Processing] In the shift up routine, for example, when the transmission 5 is in the low range L, a drive signal is generated by the first ON operation of the drive up switch 1b, and the drive motors 4a and 4b are generated. Is activated, the transmission 5 is switched to the second range S, a drive signal is generated by the next ON operation, the drive motors 4a and 4b are activated, and the transmission 5 is switched to the drive range D. At the same time, the indicator 6 sequentially lights the display of "L", "S", and "D". When the transmission 5 is in the second range S, the transmission 5 is switched to the drive range D by the first ON operation of the drive up switch 1b. At the same time, the display of the indicator 6 is switched from "S" to "D". Further, when the transmission 5 is in the drive range D, even if the drive-up switch 1b is turned on, no further shift-up is required, the transmission 5 is held in the drive range D, and the indicator 6 Is also displayed as "D".

[Automatic Neutral Processing] When the shift-up switch 1b is turned on and the shift-up processing is completed, the automatic neutral processing is performed. In this automatic neutral routine, first, based on the signals from the inhibitor switches 7f to 7k, it is determined whether or not the shift range before the above-mentioned up-shift processing is in the drive range D, and based on the signal from the brake switch 7c, the brake is depressed. Whether the vehicle is operated or not is further determined based on the signal from the vehicle speed sensor 7e whether the vehicle speed is 3 km / h or less. If all the determinations are YES, a drive signal is generated, the drive motors 4a and 4b are activated, the transmission 5 is automatically switched to the neutral range N, and at the same time, the indicator 6 is changed from "D" to "N". Can be switched to. If there is at least one NO in the above determination, the transmission 5 cannot be switched to the neutral range N 1.

[Shift Down Processing] In the shift down routine, the drive signal is generated by the first ON operation of the drive down switch 1c, the drive motors 4a and 4b are activated, and the transmission 5 is moved from the drive range D to the second position. The range S or the second range S is switched to the low range L, and it is switched to the low range L from the second range S by the next ON operation. At the same time, the indicators “D”, “S”, and “L” are lit in sequence. To be done. Also, when the transmission 5 is switched from the reverse range R to the drive D, the second S or the low L range, an excessive load acts on the gears of the transmission 5 when the vehicle speed is fast, and therefore the vehicle speed is 3 km / h or less. At this time, a drive signal is generated and the transmission 5 is switched to the drive D, second S or low L range.

[Reverse Processing] In the reverse routine, the drive signal is generated by the ON operation of the reverse switch 2, the drive motors 4a and 4b are operated, and the transmission 5 is moved to the other shift range L, S, D, N. , P to the reverse range R, and at the same time, the indicator 6 is switched to "R". However, when the drive range D, the second range S, or the low range L is switched to the reverse range R, the drive signal is generated only when the vehicle speed is 3 km / h or less.

When operating the reverse switch 2 here, the switch can be turned on by hooking a finger on the lid body 24 and opening the lid body 24 upward and then pushing the operation button 23. Further, when the lid body 24 is released, the lid body 24 returns to the original closed state by the spring force of the spring member, so that the lid body 24 does not remain open. Further, as a result of always biasing the lid body 24 in the closing direction in this way, the lid body 24 does not rattle due to traveling vibration or the like.

In the above-described auto change of the present embodiment, the cover 25 is provided on the reverse switch 2 so as to cover the operation button 23 of the reverse switch 2. Therefore, when operating the reverse switch 2, the cover 25 is operated. As a result of the operation of opening the switch 25, which is different from the operation of other switches, the reverse switch 2 is rarely operated by mistake. Further, the gear shift ranges of the drive D, the second S and the low L are switched by the lever switch 1 and the reverse range R is switched by a different operation, and both switches 1 and 2 are provided at different positions. Therefore, erroneous operation of the reverse switch 2 can be reliably prevented. Furthermore, since the shift range between the drive D and the second S and the reverse R is changed only when the vehicle speed is 3 km / h or less, the reverse switch 2 is accidentally operated during high-speed driving. However, the transmission 5 does not switch to the reverse range R. As a result, the vehicle can be suddenly braked suddenly and the occupant can be thrown forward, or the gears of the transmission 5 can be reliably prevented from being damaged due to an excessive load acting on the gears. And the durability can be guaranteed.

8 and 9 show an automatic change according to a second embodiment of the present invention. In the reverse switch 2 of the present embodiment, a case 201 is formed with a step portion 201, an operation button 202 is arranged in the center thereof, and a switch portion (not shown) is provided below the operation button 202. It is provided. A lid 203 is slidably provided on the case 200, and a spring member (not shown) for urging the lid 203 in the closing direction is provided on the lid 203.

When the reverse switch 2 is operated, the switch can be turned on by hooking a finger on the lid body 203, sliding it to open it, and pressing the operation button 202. Further, when the lid 203 is released, the lid 203 slides to the original closed state due to the spring force of the spring member, so that the lid 203 can be closed. If the lid 203 is slid upward when the lid 203 is opened, the lid 203 is naturally closed by its own weight, and the spring member for urging the lid 203 is unnecessary.

[0031]

[Effect of the device]

 As described above, according to the auto change according to the present invention, in the auto change in which the switching operation signal is generated from the switch operation unit to drive the actuator, and the transmission is switched to a predetermined shift range, the transmission is set to the reverse range. Since the reverse switch for switching operation is provided with a cover that can be opened and closed, it is possible to reliably prevent erroneous operation of the reverse switch, and to ensure safety and durability.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an interior of a vehicle equipped with an automatic change according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a lever switch in the automatic change.

FIG. 3 is a functional configuration diagram showing a control system of the auto change.

FIG. 4 is a functional diagram showing a speed change system in the automatic change.

FIG. 5 is a diagram showing a control flow in the auto change.

FIG. 6 is a perspective view showing a structure of a reverse switch in the automatic change.

FIG. 7 is an enlarged perspective view showing the reverse switch.

FIG. 8 is a perspective view showing a structure of a reverse switch in an automatic change according to a second embodiment of the present invention.

FIG. 9 is a plan view showing a structure of the reverse switch.

[Explanation of symbols]

 2 reverse switch 25 lid 203 lid 3 control unit 4a drive motor 4b drive motor 5 transmission

Claims (2)

[Scope of utility model registration request] 1. A reverse switch for switching the transmission to a reverse range in an auto change in which a switching signal is generated from a switch operating section to drive an actuator to switch the transmission to a predetermined shift range. The automatic change is characterized in that the lid that covers is provided so that it can be opened and closed. 2. The automatic change according to claim 1, wherein the lid body is provided with a spring member for urging the lid body to a closed position.