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Automobile redundant control method and system

A redundant control, vehicle controller technology, applied in the automotive field, can solve problems such as the uncontrollable car and change the working state of the motor, and achieve the effect of improving the user experience, reliability and safety

Active Publication Date: 2019-06-07
HAIMA AUTOMOBILE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor controller cannot change the working state of the motor according to the target torque from the vehicle controller, causing the car to be uncontrollable, which may have serious consequences

Method used

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  • Automobile redundant control method and system
  • Automobile redundant control method and system
  • Automobile redundant control method and system

Examples

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Comparison scheme
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Embodiment 1

[0032] This embodiment provides a redundant control system of an automobile, such as figure 1 As shown, the redundant control system includes a vehicle controller, a motor controller, and several analog channels connecting the vehicle controller and the motor controller, wherein:

[0033] When the motor controller is in the analog signal transmission mode, the vehicle controller is used to convert the received gear position information or pedal information into an analog signal, and send it to the motor controller through a corresponding analog channel;

[0034] The motor controller is used to drive the motor according to the received analog signal.

[0035] In the technical solution of the embodiment of the present invention, a redundant control system of an automobile is provided. When the motor controller in the system is in the analog signal transmission mode, the vehicle controller connects it with the analog channel of the motor controller Send an analog signal, which i...

Embodiment 2

[0050] This embodiment provides a redundant control method for automobiles, such as figure 2 As shown, the method includes:

[0051] Step S101 , when the motor controller is in the analog signal transmission mode, the vehicle controller converts the received gear information or pedal information into analog signals, and sends them to the motor controller through corresponding analog channels.

[0052] Step S102, the motor controller drives the motor according to the received analog signal.

[0053] Specifically, the analog channels include a first analog channel and a second analog channel, the first analog channel is used to transmit an analog signal representing pedal information, and the second analog channel is used to transmit an analog signal representing gear position information.

[0054] Further, the analog signal representing pedal information includes a first analog voltage signal and a second analog voltage signal, the first analog voltage signal corresponds to a...

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PUM

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Abstract

The invention discloses a redundancy control method and system of a vehicle, belongs to the technical field of automobiles and is capable of ensuing that the vehicle is still in a controlled state when the bus fails. The redundancy control system of the vehicle comprises a vehicle control unit (VCU) and a motor controller. The redundancy control system of the vehicle also comprises multiple analog channels used for connecting the VCU with the motor controller. The redundancy control system of the vehicle comprises the VCU, the motor controller, and the analog channels used for connecting the VCU with the motor controller. When the motor controller is in the analog signal transmission mode, the VCU is used for converting received gear information or pedal information into analog signals, and sending the analog signals to the motor controller through the corresponding analog channels, and the motor controller is used for driving the motor according to the received analog signals.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a redundant control method and system for automobiles. Background technique [0002] With the progress of the times, cars have entered thousands of households as a common means of transportation. [0003] In most current cars, when the gear of the car is changed and the pedal is stepped on, the vehicle control unit (Vehicle Control Unit, referred to as VCU) calculates the target torque of the motor of the vehicle by analyzing the gear information and pedal information. And the target torque is sent to the motor controller through a Controller Area Network (CAN) bus. Furthermore, the motor controller changes the working state of the motor according to the received target torque, thereby changing the driving state of the vehicle. [0004] The inventor found that in the prior art, when the CAN bus fails, the connection between the vehicle controller and the motor controller is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20B60R16/023
CPCY02T10/72
Inventor 尹冬至宋明清乔慧敏
Owner HAIMA AUTOMOBILE CO LTD
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