CN113602241A - Remote control braking system of electric learner-driven vehicle - Google Patents
Remote control braking system of electric learner-driven vehicle Download PDFInfo
- Publication number
- CN113602241A CN113602241A CN202110870297.7A CN202110870297A CN113602241A CN 113602241 A CN113602241 A CN 113602241A CN 202110870297 A CN202110870297 A CN 202110870297A CN 113602241 A CN113602241 A CN 113602241A
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- Prior art keywords
- vehicle
- motor
- braking
- relay
- receiving module
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
- B60T7/16—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger operated by remote control, i.e. initiating means not mounted on vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a remote control braking system of an electric instruction car, which comprises: the system comprises a wireless remote controller, a wireless receiving module, a vehicle control unit and a motor; the wireless remote controller sends a braking execution instruction to the radio receiving module through radio waves; when the radio receiving module receives a braking instruction, the radio receiving module automatically controls the relay on the radio receiving module to suck: when the relay is switched on, the voltage of 12V is output, and when the relay is switched off, the relay is switched off; the vehicle control unit receives 12V voltage information output by the relay through the I/O port, and sends an instruction to the motor when detecting 12V voltage, and the vehicle braking is controlled through the motor braking force. The invention realizes the braking of the vehicle through remote control, and is particularly suitable for the automatic-gear electric learner-driven vehicle to be used in the field teaching of subject two. The system realizes remote control intervention of the coach on improper operation of the student, greatly reduces the labor intensity of the coach, improves the working environment of sunstroke and solarization, and is economical and convenient.
Description
Technical Field
The invention belongs to a brake control mode of an electric learner-driven vehicle, and particularly relates to a remote control brake system of the electric learner-driven vehicle.
Background
At present, a coach in a driving school mainly corrects the driving behavior of a student through braking, the coach needs to accompany the seat in a copilot at any time, the working environment of sweltering and insolation is uncomfortable, and the work load of the coach is greatly increased by the seat for a long time. In the course of training in a subject-II field, a coach can pay attention to a special corner area and a downhill area in a shady and cool place or a monitoring room of a driving practice field, remote braking can be realized when danger is found, and the risk of misoperation of a student is reduced. Meanwhile, the conventional learner-driven vehicle is provided with an auxiliary brake system, needs mechanical parts, is assembled by punching, and has higher component cost than a remote control speed limiter. Therefore, the remote control speed limiter of the electric learner-driven vehicle can replace a secondary brake system of the learner-driven vehicle, remote control intervention is realized, improper operation of a student is realized, the high labor intensity of a trainer is greatly reduced, the working environment of heat solarization is improved, and the device is economical and convenient.
Chinese patent "remote control brake device for vehicle, remote control system for vehicle and remote control brake method for vehicle", publication No. CN105329234A, published japanese 2016.02.17 discloses a remote control brake device for vehicle, comprising: the automatic parking module is used for receiving a braking instruction sent by the remote control terminal, performing braking control on the vehicle according to the braking instruction and sending a braking failure signal when the braking control fails; a control module coupled to the auto park module, the control module controlling an engine of the vehicle to stall and a clutch of the vehicle to engage the engine to brake by drag reversal of the engine after receiving the brake failure signal when the vehicle is in a remote drive mode. The scheme is that the parking system is used for parking, and when the parking system fails, the engine is braked by combining with a clutch in a flameout mode.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an economical and convenient remote braking system for an electric instruction car, which can reduce the labor intensity of a coach.
In order to achieve the above object, the present invention provides a remote braking system for an electric learner-driven vehicle, comprising: the system comprises a wireless remote controller, a wireless receiving module, a vehicle control unit and a motor;
the wireless remote controller sends a braking execution instruction to the radio receiving module through radio waves;
when the radio receiving module receives a braking instruction, the radio receiving module automatically controls the relay on the radio receiving module to suck: when the relay is switched on, the voltage of 12V is output, and when the relay is switched off, the relay is switched off;
the vehicle control unit receives 12V voltage information output by the relay through the I/O port, and sends an instruction to the motor when detecting 12V voltage, and the vehicle braking is controlled through the motor braking force.
Preferably, the vehicle instrument is further included; when the vehicle is controlled to brake, the vehicle control unit simultaneously sends an external control information frame to the instrument, and the vehicle instrument warns students.
Preferably, the method for controlling the motor brake of the vehicle control unit comprises the following steps:
s1, whether a 12V voltage input signal is received or not, and the next step is yes; otherwise, quitting;
s2, whether the vehicle is Ready and whether the gear is D gear or R gear, yes, and the next step; otherwise, quitting;
s3, whether the absolute value of the vehicle speed is less than or equal to 1km/h,
the method comprises the following steps: the vehicle control unit sends a motor rotating speed control mode instruction to control the rotating speed target of the motor to be 0, and the next step is carried out;
otherwise: the vehicle control unit sends a torque control mode instruction of forced speed reduction, the motor executes the torque instruction of the vehicle control unit, and the next step is carried out;
s4, whether the 12V voltage input signal disappears, if yes, exiting; otherwise, S3 is repeated.
Further preferably, the torque is calculated by: when the vehicle speed is positive, the brake torque is maximally output from the minimum torque allowed by the battery system, the minimum torque allowed by the motor system and the minimum torque allowed by the temperature control system; when the vehicle speed is negative, the driving torque is output to the minimum of the maximum torque allowed by the battery system, the maximum torque allowed by the motor system and the maximum torque allowed by the temperature control system.
The invention has the beneficial effects that: the invention realizes the braking of the vehicle through remote control, and is particularly suitable for the automatic-gear electric learner-driven vehicle to be used in the field teaching of subject two.
The system realizes remote control intervention of the coach on improper operation of the student, greatly reduces the labor intensity of the coach, improves the working environment of sunstroke and solarization, and is economical and convenient.
Drawings
FIG. 1 is a block diagram of the architecture of the present invention
FIG. 2 is a flow chart of the vehicle control unit controlling the braking of the motor according to the present invention
Detailed Description
The technical solutions of the present invention (including the preferred ones) are further described in detail by way of fig. 1 to 2 and enumerating some alternative embodiments of the present invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
As shown in fig. 1 and 2, the remote braking system for an electric instructional car of the present invention comprises: the system comprises a wireless remote controller, a radio receiving module, a Vehicle Control Unit (VCU), a motor and a vehicle instrument;
the wireless remote controller sends a braking execution instruction to the radio receiving module through radio waves; the wireless remote controller is provided with a button, the button is pressed, namely the relay is sucked, and the button is released, namely the relay is disconnected;
when the radio receiving module receives a braking instruction, the radio receiving module automatically controls the relay on the radio receiving module to suck: when the relay is switched on, the voltage of 12V is output, and when the relay is switched off, the relay is switched off;
the vehicle control unit receives 12V voltage information output by the relay through the I/O port, and sends an instruction to the motor when detecting 12V voltage, and the vehicle braking is controlled through the motor braking force;
when the vehicle is controlled to brake, the vehicle control unit simultaneously sends an external control information frame to the instrument, and the vehicle instrument warns students. When the vehicle instrument receives an external control information frame sent by the VCU, the display of 'external control is in execution' is displayed to prompt a driver, and dripping warning sound is sent to remind a student.
The coach sends a switching signal through the handheld wireless remote controller, and the signal is transmitted through radio.
The radio receiving module needs a 12V low-voltage power supply to maintain power supply, when receiving the opening signal, the relay is switched on, the output pin of the relay can output 12V voltage, and otherwise, the radio receiving module keeps a disconnected state.
And the vehicle control unit receives a 12V voltage signal through the I/O port. If the voltage signal is received, the VCU enters an external control speed reduction state, and sends a torque or rotating speed control command to the motor to gradually reduce the vehicle speed to 0. If the voltage signal is deactivated, the system operates in a conventional mode. The specific control method is shown in fig. 2.
And judging whether 12V voltage input from the wireless receiving module is received or not, and if the 12V voltage input exists, immediately reporting external operation information to the planned instrument, wherein the vehicle is ready, and is in D gear or R gear. And subsequently, determining to enter a torque control mode or a rotating speed control mode according to the vehicle speed. And if the absolute value of the vehicle speed is less than or equal to 1Km/h, the VCU sends a command to a motor rotating speed control mode to control the motor rotating speed target to be 0. If the absolute value of the vehicle speed is greater than 1Km/h, a torque control mode is entered. The torque calculation method comprises the following steps: if the vehicle speed is positive, namely the vehicle needs to be decelerated through braking, the braking torque (defined as a negative value) takes the maximum output from the minimum torque allowed by the battery system, the minimum torque allowed by the motor system and the minimum torque allowed by the temperature control system; if the vehicle speed is negative, namely the vehicle needs to be driven to decelerate in the positive direction, the driving torque is output to the minimum from the maximum torque allowed by the battery system, the maximum torque allowed by the motor system and the maximum torque allowed by the temperature control system. When the 12V high-voltage signal disappears, the external control state is immediately exited.
The vehicle instrument is responsible for prompting the driver. When the vehicle instrument receives an external control information frame sent by the VCU, namely the relay is controlled by the radio receiving module to be switched on, and a 12V voltage signal is transmitted to the VCU, the 'external control execution in progress' is displayed to prompt a driver, and a dripping warning sound is sent to remind a student.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and any modification, combination, replacement, or improvement made within the spirit and principle of the present invention is included in the scope of the present invention.
Claims (4)
1. A system for remotely controlling and braking an electric instruction car is characterized by comprising: the system comprises a wireless remote controller, a wireless receiving module, a vehicle control unit and a motor;
the wireless remote controller sends a braking execution instruction to the radio receiving module through radio waves;
when the radio receiving module receives a braking instruction, the radio receiving module automatically controls the relay on the radio receiving module to suck: when the relay is switched on, the voltage of 12V is output, and when the relay is switched off, the relay is switched off;
the vehicle control unit receives 12V voltage information output by the relay through the I/O port, and sends an instruction to the motor when detecting 12V voltage, and the vehicle braking is controlled through the motor braking force.
2. The system for remotely controlling the brake of an electric learner-driven vehicle according to claim 1, wherein: the vehicle instrument is also included; when the vehicle is controlled to brake, the vehicle control unit simultaneously sends an external control information frame to the instrument, and the vehicle instrument warns students.
3. The system for remotely controlling the brake of an electric learner-driven vehicle according to claim 1, wherein: the method for controlling the motor brake by the vehicle control unit comprises the following steps:
s1, whether a 12V voltage input signal is received or not, and the next step is yes; otherwise, quitting;
s2, whether the vehicle is Ready and whether the gear is D gear or R gear, yes, and the next step; otherwise, quitting;
s3, whether the absolute value of the vehicle speed is less than or equal to 1km/h,
the method comprises the following steps: the vehicle control unit sends a motor rotating speed control mode instruction to control the rotating speed target of the motor to be 0, and the next step is carried out;
otherwise: the vehicle control unit sends a torque control mode instruction of forced speed reduction, the motor executes the torque instruction of the vehicle control unit, and the next step is carried out;
s4, whether the 12V voltage input signal disappears, if yes, exiting; otherwise, S3 is repeated.
4. The system for remotely controlling the brake of an electric learner-driven vehicle according to claim 3, wherein: the torque calculation method comprises the following steps: when the vehicle speed is positive, the brake torque is maximally output from the minimum torque allowed by the battery system, the minimum torque allowed by the motor system and the minimum torque allowed by the temperature control system; when the vehicle speed is negative, the driving torque is output to the minimum of the maximum torque allowed by the battery system, the maximum torque allowed by the motor system and the maximum torque allowed by the temperature control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110870297.7A CN113602241A (en) | 2021-07-30 | 2021-07-30 | Remote control braking system of electric learner-driven vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110870297.7A CN113602241A (en) | 2021-07-30 | 2021-07-30 | Remote control braking system of electric learner-driven vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113602241A true CN113602241A (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110870297.7A Pending CN113602241A (en) | 2021-07-30 | 2021-07-30 | Remote control braking system of electric learner-driven vehicle |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6274755A (en) * | 1985-09-27 | 1987-04-06 | Haga Atsushi | Device for braking car with radio controller in driver's school |
| CN202337213U (en) * | 2011-11-11 | 2012-07-18 | 福建百信信息技术有限公司 | Automatic controller for teaching safety of learner-driven vehicle |
| CN105329234A (en) * | 2014-07-28 | 2016-02-17 | 比亚迪股份有限公司 | Vehicle remote control brake device, vehicle remote control system and vehicle remote control brake method |
| CN105365797A (en) * | 2014-08-26 | 2016-03-02 | 盐城玉欣电动科技有限公司 | Automobile service brake device through remote control |
| CN105730426A (en) * | 2016-03-29 | 2016-07-06 | 黑龙江工程学院 | Wireless remote-control automotive auxiliary brake controller |
| CN106828196A (en) * | 2017-03-08 | 2017-06-13 | 保定中兴田野新能源汽车科技有限公司 | Pure electric automobile drillmaster control system |
| CN106965784A (en) * | 2017-05-10 | 2017-07-21 | 刘莹莹 | A kind of learner-driven vehicle remote controlled braking brake gear |
| CN112389412A (en) * | 2019-07-31 | 2021-02-23 | 比亚迪股份有限公司 | Remote control driving control method and system for vehicle and vehicle |
-
2021
- 2021-07-30 CN CN202110870297.7A patent/CN113602241A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6274755A (en) * | 1985-09-27 | 1987-04-06 | Haga Atsushi | Device for braking car with radio controller in driver's school |
| CN202337213U (en) * | 2011-11-11 | 2012-07-18 | 福建百信信息技术有限公司 | Automatic controller for teaching safety of learner-driven vehicle |
| CN105329234A (en) * | 2014-07-28 | 2016-02-17 | 比亚迪股份有限公司 | Vehicle remote control brake device, vehicle remote control system and vehicle remote control brake method |
| CN105365797A (en) * | 2014-08-26 | 2016-03-02 | 盐城玉欣电动科技有限公司 | Automobile service brake device through remote control |
| CN105730426A (en) * | 2016-03-29 | 2016-07-06 | 黑龙江工程学院 | Wireless remote-control automotive auxiliary brake controller |
| CN106828196A (en) * | 2017-03-08 | 2017-06-13 | 保定中兴田野新能源汽车科技有限公司 | Pure electric automobile drillmaster control system |
| CN106965784A (en) * | 2017-05-10 | 2017-07-21 | 刘莹莹 | A kind of learner-driven vehicle remote controlled braking brake gear |
| CN112389412A (en) * | 2019-07-31 | 2021-02-23 | 比亚迪股份有限公司 | Remote control driving control method and system for vehicle and vehicle |
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Application publication date: 20211105 |
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| RJ01 | Rejection of invention patent application after publication |