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vehicle brake control

A braking control and vehicle technology, which is applied in the direction of braking transmission, braking control system, braking action starting device, etc., can solve the problems of heavy operation of the brake operating part BP, etc.

Active Publication Date: 2021-08-17
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the characteristic CHpm (referred to as "hydraulic pressure characteristic") of the output hydraulic pressure Pma relative to the operation amount Bpa is increased, the force Fpn received from the master cylinder MC increases, and the operation of the brake operating member BP feels heavier.

Method used

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Experimental program
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Embodiment Construction

[0020]

[0021] Embodiments of a brake control device for a vehicle according to the present invention will be described with reference to the drawings. In the following description, components, arithmetic processing, signals, characteristics, and values ​​assigned with the same symbols as "ECU" and the like are the same functions. Also, a suffix (“fr” etc.) attached to the end of each symbol is a general symbol showing which wheel it is related to. Specifically, "fr" indicates the right front wheel, "fl" indicates the left front wheel, "rr" indicates the right rear wheel, and "rl" indicates the left rear wheel. For example, the wheel cylinders are described as right front wheel cylinder WCfr, left front wheel cylinder WCfl, right rear wheel cylinder WCrr, and left rear wheel cylinder WCrl. Also, the suffix at the end of the symbol can be omitted. When omitted, the symbols related to the respective wheels represent generic names. Therefore, "WH", "WC", "CP", and "KT" deno...

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PUM

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Abstract

The brake control device of the present invention includes: a differential mechanism; a first electric motor that generates a supporting force (Fjs) to the brake operating member; a second electric motor that adjusts the output rod displacement (Sro) of the differential mechanism; a controller, Controls the 1st and 2nd electric motors. In the controller, the first electric motor is controlled based on the assist map calculated for the assist force (Fjs), and the second electric motor is controlled based on the displacement map calculated for the output rod displacement (Sro). Furthermore, when the displacement map is changed, the support map is also corrected.

Description

technical field [0001] The invention relates to a brake control device for a vehicle. Background technique [0002] In Patent Document 1, it is described that "for the purpose of providing a small and simplified stroke simulator with the same brake pedal actuation feeling when the non-regenerative cooperative brake is in operation and when the regenerative cooperative brake is in operation, the rotation of the brake pedal is coaxially configured. The fulcrum, the planetary gear mechanism, and the push rod arm that drives the push rod connected with the master cylinder allow the rotation of the forward and reverse motor to act on the planetary gear mechanism to work with the non-regenerative cooperative brake when the regenerative cooperative brake is working. Correction control is performed in the manner of the brake pedal stroke map corresponding to the brake pedal input at the time of the brake pedal". [0003] Specifically, it is described in "consisting of a brake pedal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/74B60T8/17
CPCB60T7/042B60T13/662B60T13/686B60T13/745B60T8/17F16D2066/003F16D2066/005B60T8/4022B60T2270/311F16D63/002F16D2500/1023
Inventor 马夏尔·布尔塚本骏
Owner ADVICS CO LTD