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Electronic booster and EHPS or EPS safety redundancy system

A technology of safety redundancy and booster, applied in braking safety system, electric steering mechanism, power steering mechanism, etc., can solve the problems of large space limitation, difficult EHPS or EPS safety redundancy, high cost, and achieve both The effect of safety performance, simple structure and low cost

Pending Publication Date: 2022-05-31
SUZHOU HAIZHO ELECTRONIC SCI & TECH LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the EHPS motor or EPS motor is equipped with a redundant backup motor, and the electronic booster is separately equipped with a redundant backup motor, not only the cost is relatively high, but also due to its own space constraints, it is difficult to realize the safety redundancy of EHPS or EPS. Remain

Method used

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  • Electronic booster and EHPS or EPS safety redundancy system
  • Electronic booster and EHPS or EPS safety redundancy system
  • Electronic booster and EHPS or EPS safety redundancy system

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Embodiment Construction

[0023] Electronic booster and EHPS or EPS safety redundant system, including electronic booster 1, EHPS or EPS, electronic booster is provided with electronic booster redundant hydraulic pipeline, redundant backup motor 4 drives hydraulic pump (not shown) and The redundant hydraulic pipeline 9 of the electronic booster is connected, and the first solenoid valve 2 is installed on the redundant hydraulic pipeline of the electronic booster. Power steering or directly connected with EPS motor 10 to realize electric power steering, the redundant backup motor is used as an electronic booster, and the redundant backup motor is connected to the electronic booster motor through CAN, and the electronic booster motor is equipped with electronic booster motor fault monitoring Module, EHPS motor or EPS motor and redundant backup motor are connected through CAN, EHPS motor or EPS motor is installed with EHPS motor fault monitoring module or EPS motor fault monitoring module, redundant backup...

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Abstract

The invention relates to the technical field of vehicle control technologies, in particular to an electronic booster and EHPS or EPS safety redundant system which comprises an electronic booster and an EHPS or EPS, a redundant backup motor driving hydraulic pump is communicated with an electronic booster redundant hydraulic pipeline, a first electromagnetic valve is installed on the electronic booster redundant hydraulic pipeline, and a second electromagnetic valve is installed on the electronic booster redundant hydraulic pipeline. According to the transmission mechanism, an EHPS hydraulic pump is installed on a hydraulic power-assisted steering pipeline and driven by an EHPS motor to achieve hydraulic power-assisted steering or the transmission mechanism is directly connected with an EPS motor to achieve electric power-assisted steering, and a redundant backup motor serves as an electronic booster redundant standby motor to be connected with the electronic booster motor. And the redundant backup motor is used as a redundant backup motor of the EHPS motor or the EPS motor and is connected with the transmission mechanism. The system is simple in structure, low in cost, small in occupied space and high in practicability and safety.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to an electronic booster and an EHPS or EPS safety redundancy system. Background technique [0002] Electronic booster is a key safety component in the automotive chassis field. How to enhance braking safety has always been the focus of auto parts. Vacuum booster + ABS, vacuum booster + ESP, electronic booster + ABS / ESP and other solutions have appeared successively. However, how to balance cost and safety is a difficult point in the development of electronic power brakes. [0003] EHPS is a traditional mechanical hydraulic power booster driven by a motor. EPS is an electric power steering system. EPS is an instruction from a motor controller to make the motor output a steering assist torque of a corresponding magnitude and direction, thereby generating auxiliary power. However, if the EHPS motor or EPS motor is equipped with a redundant backup motor, and the electronic boo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/18B60T17/22B62D5/04
CPCB60T17/18B60T17/22B62D5/0487
Inventor 张全慧王佑明徐侨荣廖滨李建军
Owner SUZHOU HAIZHO ELECTRONIC SCI & TECH LTD CO