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Brake controller and method for controlling brakes

一种制动控制器、制动力的技术，应用在制动器、制动安全系统等方向

Inactive Publication Date: 2010-02-24
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the measured deceleration error may vary with factors other than braking deterioration, such as changes in vehicle operating conditions such as ambient temperature, external disturbances, and abnormal occurrences
Therefore, the adaptive coefficient obtained from the deceleration degree error signal may be difficult to correctly characterize because it only reflects (results in) the braking degradation over a prolonged period of time

Method used

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  • Brake controller and method for controlling brakes
  • Brake controller and method for controlling brakes
  • Brake controller and method for controlling brakes

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Embodiment Construction

[0025] Embodiments of the present invention will be described below with reference to the drawings.

[0026] figure 1 is a schematic diagram of a brake controller 10 according to an embodiment of the present invention. figure 1 The brake controller 10 shown is an electronically controlled braking system for vehicles, in which the braking of the four wheels of the vehicle is independently and optimally set following the operation of the brake operating elements (such as the brake pedal 12) . A vehicle in which this embodiment of the brake controller 10 is installed has a steering device (not shown) that steers guide wheels among four wheels, and a driving source (not shown) that For example, an internal combustion engine or an electric motor, etc.) drives the drive wheels among the four wheels.

[0027]Disc brake units 21FR, 21FL, 21RR, 21RL as braking force applying mechanisms apply braking forces to the right front wheel, left front wheel, right rear wheel, and left rear w...

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PUM

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Abstract

A brake controller is provided, having a braking force application mechanism (21FR, 21FL, 21RR, 21RL, 80) that presses a friction member against a braked member (22) so as to apply a braking force toa wheel of a vehicle; and a control unit (200) that calculates an index indicating a difference between an estimated braking effectiveness and an actual braking effectiveness, calculates a correctionamount using the index, and corrects a target value, which is set to control a pressing force of the friction member, based on the correction amount to reduce a variation in a braking effectiveness ofthe vehicle. The control unit determines whether the index is inaccurate, and limits changing the correction amount using the index if it is determined that the index is inaccurate.

Description

Technical field [0001] The present invention relates to a brake controller and a method of controlling braking force applied to a wheel. Background technique [0002] Conventional electronically controlled brake control systems for vehicles (such as that in Japanese Patent Application Laid-Open No. 62-18359 (1987)) generate deceleration by comparing a driver's brake request signal with a measured deceleration. error signal. This braking system also has a device for correcting the braking request signal, which generates an adaptability coefficient based on the deceleration error signal and uses prescribed conditions (such as vehicle speed, brake gear and operating trend during multiple vehicle stops) The braking request signal is corrected with the adaptability coefficient below. The braking system compensates for braking deterioration over an extended period of time and restores the desired braking performance. [0003] However, the measured deceleration error may vary wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/88B60T8/172
CPCB60T17/22B60T8/172
Inventor 宫崎彻也入江喜朗须田理央
Owner TOYOTA JIDOSHA KK