Compact brushless electric power steering system (EPS) controller

A compact controller technology, applied in the direction of program control, general control system, control/regulation system, etc., can solve the problems of increasing PCB board design size, high cost, etc., to reduce design and manufacturing costs, and increase safety performance Effect

Pending Publication Date: 2019-04-23
LONGHAI TEV AUTOMOTIVE ELECTRONICS RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the three-phase brushless DC motor drive needs three independent half-bridge drives to complete; the three-phase current acquisition of the motor requires three independent current operational amplifiers. This circuit structure not only requires higher cost, but also increases PCB board design size

Method used

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  • Compact brushless electric power steering system (EPS) controller
  • Compact brushless electric power steering system (EPS) controller
  • Compact brushless electric power steering system (EPS) controller

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Embodiment Construction

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] see Figures 1 to 3 , the present invention provides a technical solution: an object of the present invention is to provide a compact brushless EPS controller, which increases the safety performance of the controller during work and effectively protects the gate drive power MOS tube. . In terms of design, a larger PCB board 3 routing space can be released, and the design and manufacturing costs are greatly reduced.

[0019] In order to achieve the abo...

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PUM

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Abstract

The invention discloses a compact brushless electric power steering system (EPS) controller. The compact brushless EPS controller comprises a base, an upper cover and a PCB, a male buckle is arrangedon the surface of the upper cover, a female buckle is arranged on the surface of the base, and the upper cover and the base are connected in a clamped mode through the male buckle and the female buckle; four screw holes are formed in the surface of the base, four fixing holes are formed in the positions, corresponding to the screw holes, of the surface of the PCB, the PCB is fixedly mounted at thetop of the base through screws, and the surface of the base is fixedly connected with a power MOS tube; and a first connector and a second connector are fixedly connected to the bottom, close to thetwo sides, of the PCB correspondingly, and a motor driving module is further mounted on the upper surface of the PCB. According to the compact brushless EPS controller, the safety performance of the controller in the working process is improved, and the gate drive power MOS tube is further effectively protected. The larger PCB wiring space can be released in design, and the design and manufacturing costs are greatly lowered.

Description

technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a compact brushless EPS controller. Background technique [0002] With the development of electric power steering system (EPS) technology, the performance of the steering system, the function of the controller and the performance of the motor have become important indicators of the electric power steering system (EPS). The motor drive module in the controller is one of the most important modules of the entire electric power steering system (EPS). The motor drive module is composed of a gate drive chip, a gate drive full-bridge circuit and a current acquisition chip. Generally, a brushed motor drive is driven by a two-phase brushed DC gate driver, and a brushless motor is driven by a three-phase brushless DC gate driver. pole driver drive. [0003] In traditional EPS controllers, the gate drive chips used in the motor drive modules are often implemented with half-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 陈少棠符小军郑伟龙杨国强许叶洪
Owner LONGHAI TEV AUTOMOTIVE ELECTRONICS RES INST CO LTD
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