Unlock instant, AI-driven research and patent intelligence for your innovation.

Electric power steering control system

A technology of electric power steering and control system, which is applied in the direction of electric steering mechanism, power steering mechanism, steering mechanism, etc., and can solve problems such as malfunction and failure

Active Publication Date: 2021-07-16
SAIC MOTOR
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, one of the technical problems solved by the embodiments of the present invention is to provide an electric power steering control system to overcome the problem that the EPS fails to work normally when some components in the existing vehicle steering system fail

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric power steering control system
  • Electric power steering control system
  • Electric power steering control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1 of the present application provides an electric power steering control system, such as figure 1 as shown, figure 1 The structure diagram 01 of the electric power steering control system provided for the embodiment of the present application includes: a main control chip 10, a slave control chip 20, a motor 30, a first power supply 40 and a second power supply 50;

[0046] The first power supply 40 is electrically connected to the main control chip 10, and supplies power to the main control chip 10;

[0047] The second power supply 50 is electrically connected to the slave control chip 20, and supplies power to the slave control chip 20;

[0048] The slave control chip 20 is used to control the motor 30 to provide target boost to the vehicle when the first power supply 40 or the main control chip 10 fails.

[0049] In this embodiment, optionally, the first power supply 40 and the second power supply 50 are the same independent power supply; using the same ...

Embodiment 2

[0095] Based on the electric power steering control system provided in Embodiment 1 of the present application, Embodiment 2 of the present application provides an electric power steering control method. In this embodiment, as figure 2 as shown, figure 2 It is a flow chart of an electric power steering control method provided in an embodiment of the present application, and the method includes the following steps:

[0096] S201: According to the data collected by the first torque sensor, the second torque sensor and the third torque sensor, determine the hand force and rotation angle information of the steering wheel of the vehicle.

[0097] According to the data collected by the first torque sensor, the second torque sensor and the third torque sensor, determine the steering wheel hand force and rotation angle information of the vehicle steering, including:

[0098] Utilize the first sensor 60, the first torque sensor 601, the second torque sensor 602 and the third torque ...

Embodiment 3

[0110] Based on the electric power steering control system provided in Embodiment 1 of the present application, Embodiment 2 of the present application provides a working method of the electric power steering control system when a power supply is abnormal, such as image 3 as shown, image 3 A working flow chart of an electric power steering control system provided in an embodiment of the present application, including:

[0111] S301: According to the data collected by the second torque sensor and the third torque sensor, determine the hand force and rotation angle information of the steering wheel of the vehicle.

[0112] According to the data collected by the second torque sensor and the third torque sensor, determine the steering wheel hand force and rotation angle information of the vehicle steering, including:

[0113] In this embodiment, a failure of the first power supply 40 is taken as an example for description.

[0114] When the first power supply 40 fails, the con...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention provides an electric power steering control system which comprises a first power source, a second power source, a master control chip, a slave control chip and a six-phase motor; the two independent power sources supply power to the master control chip and the slave control chip correspondingly, and the master control chip and the slave control chip communicate with each other and check information; the three torque sensors are used for determining hand force and turning angle information applied to a vehicle steering wheel, the three position sensors are used for determining motor position information of a vehicle, and only one control chip of the master control chip or the slave control chip controls a motor of the vehicle through two sets of driving circuits to provide steering power for the vehicle. When the first power source or the main control chip breaks down, the switched slave control chip controls the motor to provide the target output torque for the vehicle, and the stability and safety of the EPS system in intelligent driving are improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of automobiles, and in particular to an automobile steering system. Background technique [0002] With the development of the automobile industry, intelligent driving is becoming more and more popular in automobile systems. For example, the electric power steering control system of automobiles, that is, the EPS (Electric Power Steering) system, can rely on the motor to provide steering assistance for the vehicle. The traditional EPS system mainly It consists of actuators, controllers, sensors, and mechanical connection structures. EPS uses sensors to collect vehicle operating data to determine the current target torque required by the vehicle, and controls the vehicle's motor to provide the vehicle with the output power of the required target torque. Use EPS to control the steering of the vehicle during driving. When the user leaves the steering wheel with both hands, if the EPS s...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04
CPCB62D5/04B62D5/046B62D5/0481
Inventor 肖旭辉郑冬霞刘咏萱苏阳邓念张成宝刘飞韩东冬林龙贤谷成姬生远
Owner SAIC MOTOR