CN210337595U - Whole vehicle control system combining wire control and communication control - Google Patents
Whole vehicle control system combining wire control and communication control Download PDFInfo
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- CN210337595U CN210337595U CN201921001811.8U CN201921001811U CN210337595U CN 210337595 U CN210337595 U CN 210337595U CN 201921001811 U CN201921001811 U CN 201921001811U CN 210337595 U CN210337595 U CN 210337595U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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Abstract
A finished automobile control system combining wire control and communication control comprises a control instruction module, wherein the control instruction module is respectively connected with a motor controller and a finished automobile controller through a lead, the finished automobile controller is connected with the motor controller through a digital communication signal wire, the finished automobile controller is used for sending control parameters to the motor controller, the motor controller is used for reporting feedback information to the finished automobile controller, and the motor controller is connected with a motor through a lead; the control instruction module comprises an acceleration instruction unit, a gear shifting instruction unit and a brake instruction unit; the control instruction module is electrically connected with the motor controller and the vehicle control unit in parallel, so that the instruction of a driver can be accurately transmitted to the electric controller; has the advantages of simple operation, safety and reliability.
Description
The technical field is as follows:
the utility model relates to a drive-by-wire and communication control combined whole car control system.
Background art:
the electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations. Electric vehicles can be classified into pure electric vehicles, hybrid electric vehicles, and fuel cell vehicles according to the kind of power source.
In the existing electric automobile, there are two modes for the intention of the driver and the information transmission between the motor controllers: the first mode is that the intention signal of the driver is directly connected to the weak current signal input end of the motor controller, the motor controller collects voltage signals through an AD channel, and the motor controller outputs current and drives the motor to work according to the stepping depth of an accelerator pedal. The second way is communication control. The driver intention signal is connected to a Vehicle Control Unit (VCU), and the vehicle control unit collects a voltage signal and identifies the driver intention through a built-in AD channel. The vehicle control unit communicates with the motor controller through a communication line to transmit the intention of a driver, and after receiving a Vehicle Control Unit (VCU) signal, the controller outputs current to drive the motor to work.
A motor controller and a motor as power sources are important parts of vehicle safety. The driver's intention must be communicated to the motor controller in a timely and reliable manner. The two independent modes have the problem that after failure, the intention of a driver cannot be transmitted to the motor controller, and the system reliability is poor.
The utility model has the following contents:
the embodiment of the utility model provides a drive-by-wire and communication control combined whole car control system, structural design is reasonable, adopts the mode that wire control and communication control combined together, guarantees that driver's intention can transmit machine controller constantly, and safe and reliable has solved the problem that exists among the prior art.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a finished automobile control system combining wire control and communication control comprises a control instruction module, wherein the control instruction module is respectively connected with a motor controller and a finished automobile controller through a lead, the finished automobile controller is connected with the motor controller through a digital communication signal wire, the finished automobile controller is used for sending control parameters to the motor controller, the motor controller is used for reporting feedback information to the finished automobile controller, and the motor controller is connected with a motor through a lead; the control instruction module comprises an acceleration instruction unit, a gear shifting instruction unit and a brake instruction unit.
The vehicle control unit comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit and a digital communication circuit.
The motor controller comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit, a digital communication circuit and a signal amplification circuit.
The communication signal line comprises a CAN communication signal line, an RS-485 communication signal line and an RS-232 communication signal.
The control parameters include power, torque, and rotational speed.
The feedback information includes rotational speed, current, temperature, and fault.
The acceleration instruction unit is an accelerator pedal, the gear shifting instruction unit is a gear shifter, and the brake instruction unit is a brake pedal with a position sensor.
The priority of digital communication control between the vehicle control unit and the motor controller is higher than the priority of parameter transmission between the control instruction module and the motor controller.
By adopting the structure, the utility model adopts the electrical connection mode of parallel connection with the motor controller and the vehicle control unit through the control command module, so as to ensure that the command of the driver can be accurately transmitted to the motor controller; the vehicle control unit is electrically connected with the electric controller through the communication signal wire, so that the vehicle control unit can send control parameters to the electric controller, and the action of the electric vehicle is controlled according to the instruction of a driver, and the vehicle control device has the advantages of simplicity and convenience in operation, safety and reliability.
Description of the drawings:
fig. 1 is a schematic diagram of the electrical connection of the present invention.
Fig. 2 is a block diagram of the control command module according to the present invention.
Fig. 3 is a block diagram of the vehicle control unit of the present invention.
Fig. 4 is a block diagram of the motor controller according to the present invention.
The specific implementation mode is as follows:
in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-4, the integrated vehicle control system combining seed line control and communication control includes a control instruction module, the control instruction module is respectively connected with a motor controller and a integrated vehicle controller through a wire, the integrated vehicle controller is connected with the motor controller through a digital communication signal line, the integrated vehicle controller is used for sending control parameters to the motor controller, the motor controller is used for reporting feedback information to the integrated vehicle controller, and the motor controller is connected with a motor through a wire; the control instruction module comprises an acceleration instruction unit, a gear shifting instruction unit and a brake instruction unit.
The vehicle control unit comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit and a digital communication circuit.
The motor controller comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit, a digital communication circuit and a signal amplification circuit.
The communication signal line comprises a CAN communication signal line, an RS-485 communication signal line and an RS-232 communication signal.
The control parameters include power, torque, and rotational speed.
The feedback information includes rotational speed, current, temperature, and fault.
The acceleration instruction unit is an accelerator pedal, the gear shifting instruction unit is a gear shifter, and the brake instruction unit is a brake pedal with a position sensor.
The priority of digital communication control between the vehicle control unit and the motor controller is higher than the priority of parameter transmission between the control instruction module and the motor controller.
The control system consists of a control instruction module, a vehicle control unit and one or more motor controllers, wherein each motor controller is connected with a driving motor, and the control mode of combining line control and communication control is adopted to ensure that the electric vehicle can act according to the instruction of a driver. The accelerator pedal, the gear and the brake of the vehicle control system are respectively connected with the vehicle control unit and the motor controller, and the intention signal of the driver can be sent to the vehicle control unit and the motor controller.
When the system is used, in a normal state, a driver sends driving intention to the vehicle control unit for processing through the control instruction module, processed signals are sent to the motor controller through a digital communication circuit in the vehicle control unit and a digital communication circuit in the motor controller, and the motor controller controls the motor to work correspondingly to meet the requirements of the driver; the motor controller obtains the intention of a driver through a signal conditioning circuit and an A/D conversion and level detection circuit of the motor controller, and the intention of the driver is not used as a control basis and is only used as a check basis; when one or two motor controllers do not receive communication signals within a certain time, the communication fault is judged, the control system is switched into a wire control state, the motor controllers are used for controlling, driver intention information is obtained through a signal conditioning circuit and an A/D conversion and level detection circuit of the motor controllers, and the operation of the vehicle in the fault is controlled; the control parameters received by the motor controller comprise power, torque and rotating speed, and the feedback information reported to the whole vehicle controller by the motor controller comprises rotating speed, current, temperature and faults; the communication signal line comprises a CAN communication signal line, an RS-485 communication signal line and an RS-232 communication signal, wherein the CAN communication signal line is an optimal scheme; in the system, the priority of digital communication control between the vehicle control unit and the motor controller is higher than the priority of parameter transmission between the control instruction module and the motor controller, and when a fault occurs, the vehicle control unit is automatically switched to a wire control mode; in conclusion, the mode of combining the wire control and the communication control is adopted, the driving intention of a driver is transmitted to the motor controller, the electric automobile can be driven safely, and the reliability of the system is improved.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (8)
1. The utility model provides a whole car control system that drive-by-wire and communication control combined together which characterized in that: the control system comprises a control instruction module, wherein the control instruction module is respectively connected with a motor controller and a vehicle control unit through leads, the vehicle control unit is connected with the motor controller through a digital communication signal line, the vehicle control unit is used for sending control parameters to the motor controller, the motor controller is used for reporting feedback information to the vehicle control unit, and the motor controller is connected with a motor through leads; the control instruction module comprises an acceleration instruction unit, a gear shifting instruction unit and a brake instruction unit.
2. The system of claim 1, wherein: the vehicle control unit comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit and a digital communication circuit.
3. The system of claim 1, wherein: the motor controller comprises a signal conditioning circuit, an AD conversion circuit, a level detection circuit, a digital signal processing circuit, a digital communication circuit and a signal amplification circuit.
4. The system of claim 1, wherein: the communication signal line comprises a CAN communication signal line, an RS-485 communication signal line and an RS-232 communication signal.
5. The system of claim 1, wherein: the control parameters include power, torque, and rotational speed.
6. The system of claim 1, wherein: the feedback information includes rotational speed, current, temperature, and fault.
7. The system of claim 1, wherein: the acceleration instruction unit is an accelerator pedal, the gear shifting instruction unit is a gear shifter, and the brake instruction unit is a brake pedal with a position sensor.
8. The system of claim 1, wherein: the priority of digital communication control between the vehicle control unit and the motor controller is higher than the priority of parameter transmission between the control instruction module and the motor controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001811.8U CN210337595U (en) | 2019-06-28 | 2019-06-28 | Whole vehicle control system combining wire control and communication control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001811.8U CN210337595U (en) | 2019-06-28 | 2019-06-28 | Whole vehicle control system combining wire control and communication control |
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| Publication Number | Publication Date |
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| CN210337595U true CN210337595U (en) | 2020-04-17 |
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| CN201921001811.8U Active CN210337595U (en) | 2019-06-28 | 2019-06-28 | Whole vehicle control system combining wire control and communication control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232519A (en) * | 2021-05-11 | 2021-08-10 | 广汽丰田汽车有限公司 | Vehicle control method, device and system, vehicle and readable storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113232519A (en) * | 2021-05-11 | 2021-08-10 | 广汽丰田汽车有限公司 | Vehicle control method, device and system, vehicle and readable storage medium |
| CN113232519B (en) * | 2021-05-11 | 2023-03-14 | 广汽丰田汽车有限公司 | Vehicle control method, device and system, vehicle and readable storage medium |
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