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A device that performs an interlock function in an electric power steering system

An electric power steering and interlocking technology, which is applied to electric steering mechanisms, power steering mechanisms, automatic steering control components, etc., can solve the problems of increasing the unit manufacturing cost of electric power steering systems, and achieve the effect of reducing manufacturing costs.

Active Publication Date: 2011-11-30
HL MANDO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the traditional interlock device 126 that must use a high-performance processor increases the unit manufacturing cost of the electric power steering system

Method used

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  • A device that performs an interlock function in an electric power steering system
  • A device that performs an interlock function in an electric power steering system
  • A device that performs an interlock function in an electric power steering system

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Embodiment Construction

[0016] Specific embodiments of the present invention are given below in conjunction with the accompanying drawings. In the ensuing description, although the same elements may appear in different drawings, these elements will be assigned the same reference numerals. Furthermore, in the following description of the disclosed content, the description of known functions, structures and combinations thereof will be omitted, which may make the subject matter disclosed in the present invention unclear to some extent.

[0017] attached Figure 4 Shown is a schematic block diagram of the internal structure of the interlocking device 400 described in this specific embodiment.

[0018] Different from the traditional interlock device 126 , the interlock device 400 has the function of timely data communication among the torque sensor 110 , the motor driver 124 and the current sensor 128 . The interlock device 400 described in this specific embodiment includes a data interface 410 , a mem...

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Abstract

The invention discloses a device for performing an interlock function in an electric power steering system. The interlocking device only needs to select two-phase current values ​​from the three-phase feedback current values, and select a single-field rectification positioning value from the three-field rectification positioning values ​​for the three-phase feedback current values, that is, it can generate an output torque current Realize the interlock function of the steering system. The interlocking device of the present invention receives the three-phase feedback current value from the current sensor, and receives the rectification positioning value for the three-field three-phase current feedback current value from the rectification positioning sensor, wherein the two-phase current value and the value for the single The rectified positioning value of the field single-phase feedback current is collected by the interlock device using a relatively cheap processor and used to generate the output torque current value.

Description

【Technical field】 [0001] The invention relates to a device for performing interlocking function in an electric power steering system, in particular to a device for inhibiting the operation of the electric power steering system to ensure the driver's safety when the system is in an abnormal state. 【Background technique】 [0002] attached figure 1 Shown is a block diagram of an internal structure of an electric power steering (EPS: electric power steering) system for a vehicle. The electric power steering system includes a torque sensor 110 , an electronic control unit 120 and an electric power steering motor 130 . The electronic control unit 120 includes a micro control unit 122 , a motor driver 124 , a conventional interlock device 126 and a current sensor 128 . Among the above components, the traditional interlock device 126 will prevent the operation of the electric power steering system to ensure the safety of the driver when the system is in an abnormal state. [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/08
CPCB62D5/0469B62D6/10B62D5/04
Inventor 陈钟学
Owner HL MANDO CORP