CN112092969A - Control device for safe driving of electric vehicle - Google Patents
Control device for safe driving of electric vehicle Download PDFInfo
- Publication number
- CN112092969A CN112092969A CN202011097716.XA CN202011097716A CN112092969A CN 112092969 A CN112092969 A CN 112092969A CN 202011097716 A CN202011097716 A CN 202011097716A CN 112092969 A CN112092969 A CN 112092969A
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- handle
- sensor
- electric vehicle
- piezoresistive
- piezoresistive sensor
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- 238000005259 measurement Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
- B62K23/02—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips hand actuated
- B62K23/04—Twist grips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
- B62J45/415—Inclination sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
- B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
- B62J45/422—Sensor arrangements; Mounting thereof characterised by mounting on the handlebar
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention discloses a control device for safe driving of an electric vehicle, which comprises: the handle, the handle includes first handle and second handle, the handle periphery covers there is the piezoresistive sensor, inclination sensor is fixed in inside the handle, the piezoresistive sensor includes first piezoresistive sensor and second piezoresistive sensor, all with the sensor signal processing unit of piezoresistive sensor and inclination sensor signal connection, electric motor car throttle handle sensor is used for exporting throttle handle signal and signal connection has electric motor car throttle controller, electronic logic switch with sensor signal processing unit signal connection. According to the invention, the driver can be regulated to drive safely, and meanwhile, the self-measurement judgment and the error touch prevention can be realized, so that the potential safety hazard of the electric vehicle can be eliminated to a great extent, and the driver can not be uncomfortable in operation.
Description
Technical Field
The invention relates to the technical field of intelligent sensing control, in particular to a control device for safe driving of an electric vehicle.
Background
At present, aiming at the aspect of irregular driving of drivers and passengers, oral warning of traffic police personnel is mainly used, full equipment is not basically additionally arranged on the aspect of active safety protection of electric vehicle manufacturers aiming at the drivers and passengers, self-supervision and normalized driving of the drivers is difficult to realize, and the probability of safety accidents is greatly increased.
Secondly, under some special conditions, for example, the driver of the electric vehicle can make a mistouch, and most of the existing electric vehicles do not have a device for preventing the mistouch, so that accidents related to the mistouch are frequent and the potential safety hazard exists all the time.
The current electric vehicle does not consider the condition of mistaken touch under the condition that the electric vehicle carries people, and a guardian sometimes places a child in front of the seat of the guardian, so that the child can more easily contact an accelerator grip, and the condition of mistaken touch is caused.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a control device for safe driving of an electric vehicle, which can automatically measure and judge and prevent the occurrence of false touch while standardizing the safe driving of a driver, eliminate the potential safety hazard of the electric vehicle to a great extent and avoid any discomfort in operation to the driver. To achieve the above objects and other advantages in accordance with the present invention, there is provided a control device for safe driving of an electric vehicle, comprising:
the handle comprises a first handle and a second handle, a piezoresistive sensor covers the periphery of the handle, and the piezoresistive sensor is used for analyzing the force and the stressed area of the handle;
the inclination angle sensor is fixed inside the handle and is used for measuring the inclination degree of the vehicle;
the piezoresistive sensors comprise a first piezoresistive sensor and a second piezoresistive sensor, the first piezoresistive sensor covers the periphery of the first handle, and the second piezoresistive sensor covers the periphery of the second handle;
the sensor signal processing unit is in signal connection with the piezoresistive sensor and the inclination angle sensor and is used for acquiring signals of the piezoresistive sensor and the inclination angle sensor;
the electric vehicle accelerator handle sensor is used for outputting an accelerator handle signal and is connected with an electric vehicle accelerator controller in a signal mode, and the electric vehicle accelerator controller is used for controlling an accelerator;
the electronic logic switch is arranged between the electric vehicle accelerator handle sensor and the electric vehicle accelerator controller and is in signal connection with the sensor signal processing unit.
Preferably, the vehicle braking device further comprises a threshold module, wherein the threshold module comprises an inclination angle threshold, a pressure threshold and a force-bearing area threshold, the inclination angle threshold is used for judging the braking state of the vehicle, and the pressure threshold and the force-bearing area threshold are both used for judging whether the vehicle is in a false touch state.
Preferably, the outer surface of the handle is sleeved with a rubber sleeve, the thickness of the rubber sleeve is a first thickness value, and the first thickness value is greater than or equal to the sum of the thickness of the handle and the thickness of the piezoresistive sensor.
Preferably, the handle is a detachable electric vehicle accelerator handle, the inner part of the handle is a cavity, the diameter of the handle is a first width value, and the first width value is larger than or equal to the width value of the inclination angle sensor.
Preferably, the piezoresistive sensor is cylindrical, the piezoresistive sensor is in interference fit with the handle, and a plurality of sensing units are fixed on the outer peripheral surface of the piezoresistive sensor.
Preferably, the system for the control device for safe driving of the electric vehicle comprises the following steps:
s1, mounting the tilt angle sensor in a handle, respectively sleeving the first piezoresistive sensor and the second piezoresistive sensor on the outer surfaces of the first handle and the second handle, and sleeving a rubber sleeve on the handle;
s4, starting the electric vehicle, measuring the inclination degree of the vehicle by the inclination angle sensor, detecting to obtain an inclination angle, and judging whether the vehicle inclines or not;
and S5, judging the contact area of the first handle and the second handle by the first piezoresistive sensor and the second piezoresistive sensor respectively, judging whether the first handle and the second handle both have the contact area and the force, and judging whether the handle is held by an adult.
Preferably, the sensor signal processing unit receives a tilt angle sensor signal, judges that the tilt angle is greater than a tilt angle threshold, and when the vehicle is in a tilt state, the sensor signal processing unit generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in a disconnection state, and the electric vehicle controller and the handle throttle sensor are disconnected.
Preferably, the sensor signal processing unit only receives a signal on the first piezoresistive sensor or the second piezoresistive sensor, and then determines that the handle is not held by both hands, the sensor signal processing unit generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in a disconnection state, and the electric vehicle controller and the handle accelerator sensor are in disconnection.
Preferably, the sensor signal processing unit receives a contact area signal on the first piezoresistive sensor or the second piezoresistive sensor, determines that the contact area is smaller than a stress area threshold value, and determines that the vehicle is not an adult, the sensor signal processing unit generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in a disconnected state, and the electric vehicle controller and the handle throttle sensor are disconnected.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention can effectively judge whether the vehicle is in the side turning state or not through the tilt angle sensor, and when the vehicle is in the side turning state, the electronic logic switch is effectively prevented by the braking effect of the vehicle, thereby preventing the occurrence of false touch behavior under the condition of the side turning of the vehicle.
(2) According to the invention, the safe driving behavior of the driver is normalized, and when the contact areas are not detected on the first handle and the second handle simultaneously, the situation that the electric vehicle cannot be braked when the driver is in the situation of driving with one hand is judged.
(3) The invention can analyze the force transmitted from the handle through the piezoresistive sensor on the handle, judge whether the child mistakenly touches the handle or not and effectively organize the occurrence of accidents.
Drawings
Fig. 1 is a schematic three-dimensional structure of a control device for safe driving of an electric vehicle according to the present invention;
fig. 2 is an operational schematic diagram of a control device for safe driving of an electric vehicle according to the present invention;
fig. 3 is a flowchart illustrating an operation of the control apparatus for safe driving of an electric vehicle according to the present invention.
In the figure: 1. a handle; 2. a piezoresistive sensor; 3. a tilt sensor; 4. a rubber sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, a control apparatus for safe driving of an electric vehicle includes: the handle 1 comprises a first handle and a second handle, a piezoresistive sensor 2 covers the periphery of the handle 1, and the piezoresistive sensor 2 is used for analyzing the force and the stressed area of the handle 1; the inclination angle sensor 3 is fixed inside the handle 1, and the inclination angle sensor 3 is used for measuring the inclination degree of the vehicle; the piezoresistive sensors 2 comprise a first piezoresistive sensor and a second piezoresistive sensor, the first piezoresistive sensor covers the periphery of the first handle, and the second piezoresistive sensor covers the periphery of the second handle; the sensor signal processing unit is in signal connection with the piezoresistive sensor 2 and the tilt sensor 3 and is used for acquiring signals of the piezoresistive sensor 2 and the tilt sensor 3; the electric vehicle accelerator handle sensor is used for outputting an accelerator handle signal and is connected with an electric vehicle accelerator controller in a signal mode, and the electric vehicle accelerator controller is used for controlling an accelerator; the electronic logic switch is arranged between the electric vehicle accelerator handle sensor and the electric vehicle accelerator controller and is in signal connection with the sensor signal processing unit.
The vehicle braking system further comprises a threshold module, wherein the threshold module comprises an inclination angle threshold, a pressure threshold and a stress area threshold, the inclination angle threshold is used for judging the state of the vehicle in braking, the pressure threshold and the stress area threshold are both used for judging whether the vehicle is in a false touch state, the inclination angle threshold, the pressure threshold and the stress area threshold are used for determining the optimal thresholds through multiple experiments, and the control system can judge the state of the vehicle in braking through the thresholds.
Further, the outer surface of the handle 1 is sleeved with a rubber sleeve 4, the thickness of the rubber sleeve 4 is a first thickness value, and the first thickness value is greater than or equal to the sum of the thickness of the handle 1 and the thickness of the piezoresistive sensor 2, so that the gap between the handle 1 and the piezoresistive sensor 2 is compressed, and the piezoresistive sensor 2 is sensitive and rapid when the user holds the rubber sleeve 4.
Further, handle 1 is for dismantling electric motor car throttle handle and inside be the cavity, and the diameter of handle 1 is first width value, first width value is greater than or equal to inclination sensor 3's width value to make inclination sensor 3 can be stable place handle 1.
Further, piezoresistive sensor 2 is cylindric, piezoresistive sensor 2 and 1 interference fit of handle, and is fixed with a plurality of induction element on the piezoresistive sensor 2 periphery surface, a plurality of induction element can be more accurate response driver hold power and the atress area on the handle 1 for the information of feedback is more accurate.
The intelligent electric vehicle accelerator grip can realize the function of judging mistaken touch through two sensors. Wherein, 3 inclination sensor settle in 1 handle inside, 2 flexible piezoresistive sensors cover 1 handle surface, and the start of the two links to each other with the electric motor car power, and when the electric motor car started, two sensors also began to respond to thereupon.
When the electric car is started, the inclination angle sensor 3 starts to measure the inclination angle of the car body, the first piezoresistive sensor covers the periphery of the first handle, the second piezoresistive sensor covers the periphery of the second handle, the force and the contact area transmitted from the handle are measured, then the force and the contact area are transmitted to the sensor signal processing unit in the form of electric signals, the sensor signal processing unit analyzes the transmitted electric signals, and the transmitted numerical values are compared with the set threshold value.
When the inclination angle is larger than the set threshold value, the sensor signal processing unit judges that the electric vehicle is in a rollover state and generates a voltage signal to be transmitted to the electronic logic switch, so that the electronic logic switch is in a disconnection state, and the mistaken touch behavior under the rollover condition of the vehicle is prevented.
Similarly, when the gripping force or the contact area of the first handle and the second handle is smaller than the set threshold value, the sensor signal processing unit judges that the driver is in one-hand driving or the electric vehicle is braked due to error touch, and generates a voltage signal to be transmitted to the electronic logic switch, so that the electronic logic switch is in a disconnected state, and the potential safety hazard is eliminated.
Further, a system for a control device for safe driving of an electric vehicle includes the steps of:
s1, installing the tilt angle sensor 3 in the handle 1, respectively sleeving the first piezoresistive sensor and the second piezoresistive sensor on the outer surfaces of the first handle and the second handle, and sleeving the rubber sleeve 4 on the handle 1;
s4, starting the electric vehicle, measuring the inclination degree of the vehicle by the inclination sensor 3, detecting to obtain an inclination angle, and judging whether the vehicle inclines or not;
and S5, judging the contact area of the first handle and the second handle by the first piezoresistive sensor and the second piezoresistive sensor respectively, judging whether the first handle and the second handle both have the contact area and the force, and judging whether the handle is held by an adult.
Further, in step S4, the sensor signal processing unit receives an inclination sensor signal, and determines that the inclination angle is greater than an inclination threshold, when the vehicle is in an inclined state, the sensor signal processing unit generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in a disconnected state, and the electric vehicle controller and the handle accelerator sensor are disconnected.
Further, in step S5, the sensor signal processing unit only receives a signal on the first piezoresistive sensor or the second piezoresistive sensor, and determines that the handle is not held by both hands, the sensor signal processing unit generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in a disconnected state, and the electric vehicle controller and the handle throttle sensor are disconnected.
Further, in step S5, the sensor signal processing unit receives a contact area signal on the first piezoresistive sensor or the second piezoresistive sensor, determines that the contact area is smaller than a force-bearing area threshold, determines that the vehicle is not an adult, generates a voltage signal and transmits the voltage signal to the electronic logic switch, where the electronic logic switch is in an off state, and the electric vehicle controller and the handle throttle sensor are in an off state.
The number of devices and the scale of the processes described herein are intended to simplify the description of the invention, and applications, modifications and variations of the invention will be apparent to those skilled in the art.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (9)
1. A control device for safe driving of an electric vehicle, comprising:
the handle (1) comprises a first handle and a second handle, the periphery of the handle (1) is covered with a piezoresistive sensor (2), and the piezoresistive sensor (2) is used for analyzing the force and the stressed area of the handle (1);
the inclination angle sensor (3) is fixed inside the handle (1), and the inclination angle sensor (3) is used for measuring the inclination degree of a vehicle;
the piezoresistive sensors (2) comprise a first piezoresistive sensor and a second piezoresistive sensor, the first piezoresistive sensor covers the periphery of the first handle, and the second piezoresistive sensor covers the periphery of the second handle;
the sensor signal processing unit is in signal connection with the piezoresistive sensor (2) and the inclination angle sensor (3) and is used for acquiring signals of the piezoresistive sensor (2) and the inclination angle sensor (3);
the electric vehicle accelerator handle sensor is used for outputting an accelerator handle signal and is connected with an electric vehicle accelerator controller in a signal mode, and the electric vehicle accelerator controller is used for controlling an accelerator;
the electronic logic switch is arranged between the electric vehicle accelerator handle sensor and the electric vehicle accelerator controller and is in signal connection with the sensor signal processing unit.
2. The control device for the safe driving of the electric vehicle as claimed in claim 1, further comprising a threshold module, wherein the threshold module comprises an inclination angle threshold, a pressure threshold and a force-bearing area threshold, the inclination angle threshold is used for judging the braking state of the vehicle, and the pressure threshold and the force-bearing area threshold are both used for judging whether the vehicle is in a false touch state.
3. The control device for the safe driving of the electric vehicle according to claim 1, characterized in that the rubber sleeve (4) is sleeved on the outer surface of the handle (1), the thickness of the rubber sleeve (4) is a first thickness value, and the first thickness value is larger than or equal to the sum of the thickness of the handle (1) and the thickness of the piezoresistive sensor (2).
4. The control device for safe driving of electric vehicle as claimed in claim 1, wherein the handle (1) is a detachable electric vehicle accelerator handle and the interior is a cavity, the diameter of the handle (1) is a first width value, and the first width value is greater than or equal to the width value of the tilt sensor (3).
5. The control device for safe driving of electric vehicle according to claim 1, wherein the piezoresistive sensor (2) is cylindrical, the piezoresistive sensor (2) is in interference fit with the handle (1), and a plurality of sensing units are fixed on the outer circumferential surface of the piezoresistive sensor (2).
6. The system of claim 1, wherein the control device for safe driving of an electric vehicle comprises the following steps:
s1, mounting the tilt angle sensor (3) in a handle (1), respectively sleeving the first piezoresistive sensor and the second piezoresistive sensor on the outer surfaces of the first handle and the second handle, and sleeving a rubber sleeve (4) on the handle (1);
s4, starting the electric vehicle, measuring the inclination degree of the vehicle by the inclination angle sensor (3), detecting to obtain an inclination angle, and judging whether the vehicle inclines or not;
and S5, judging the contact area of the first handle and the second handle by the first piezoresistive sensor and the second piezoresistive sensor respectively, judging whether the first handle and the second handle both have the contact area and the force, and judging whether the handle is held by an adult.
7. The control device for safe driving of an electric vehicle according to claim 6, wherein in step S4, when the sensor signal processing unit receives a tilt sensor signal and determines that the tilt angle is greater than a tilt threshold, the sensor signal processing unit generates a voltage signal to be transmitted to the electronic logic switch when the vehicle is in a tilted state, the electronic logic switch is in an off state, and the electric vehicle controller and the handle throttle sensor are in an off state.
8. The control device for safe driving of electric vehicle according to claim 6, wherein in step S5, the sensor signal processing unit only receives a signal from the first piezoresistive sensor or the second piezoresistive sensor, and determines that the handle is not held by both hands, the sensor signal processing unit generates a voltage signal to be transmitted to the electronic logic switch, the electronic logic switch is in an off state, and the electric vehicle controller and the handle throttle sensor are in an off state.
9. The control device for safe driving of electric vehicle according to claim 6, wherein in step S5, the sensor signal processing unit receives the contact area signal on the first piezoresistive sensor or the second piezoresistive sensor, determines that the contact area is smaller than the force-bearing area threshold, determines that the vehicle is not an adult, generates a voltage signal and transmits the voltage signal to the electronic logic switch, the electronic logic switch is in an off state, and the electric vehicle controller and the throttle sensor are in an off state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097716.XA CN112092969A (en) | 2020-10-14 | 2020-10-14 | Control device for safe driving of electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097716.XA CN112092969A (en) | 2020-10-14 | 2020-10-14 | Control device for safe driving of electric vehicle |
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| CN112092969A true CN112092969A (en) | 2020-12-18 |
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| CN202011097716.XA Pending CN112092969A (en) | 2020-10-14 | 2020-10-14 | Control device for safe driving of electric vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202935515U (en) * | 2012-11-26 | 2013-05-15 | 宁波奥博尔电器有限公司 | Safety starting device of electric bicycle |
| CN204527506U (en) * | 2015-04-13 | 2015-08-05 | 宋健 | A kind of battery-driven car child-resistant error starting device |
| CN110065567A (en) * | 2019-04-25 | 2019-07-30 | 潍坊红石星机械加工有限公司 | Electric three-wheel truck control device |
| CN110949596A (en) * | 2019-11-27 | 2020-04-03 | 上海钧正网络科技有限公司 | Electric vehicle control system and electric vehicle |
| CN214776372U (en) * | 2020-10-14 | 2021-11-19 | 上海理工大学 | Control device for safe driving of electric vehicle |
-
2020
- 2020-10-14 CN CN202011097716.XA patent/CN112092969A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202935515U (en) * | 2012-11-26 | 2013-05-15 | 宁波奥博尔电器有限公司 | Safety starting device of electric bicycle |
| CN204527506U (en) * | 2015-04-13 | 2015-08-05 | 宋健 | A kind of battery-driven car child-resistant error starting device |
| CN110065567A (en) * | 2019-04-25 | 2019-07-30 | 潍坊红石星机械加工有限公司 | Electric three-wheel truck control device |
| CN110949596A (en) * | 2019-11-27 | 2020-04-03 | 上海钧正网络科技有限公司 | Electric vehicle control system and electric vehicle |
| CN214776372U (en) * | 2020-10-14 | 2021-11-19 | 上海理工大学 | Control device for safe driving of electric vehicle |
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