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Vehicle braking device

A technology for braking devices and vehicles, which is applied in the direction of braking transmission devices, brakes, vehicle components, etc., and can solve problems such as impact and braking force impact

Inactive Publication Date: 2019-02-05
ADVICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the fluctuation of the main pressure will affect the wheel pressure, which in turn will affect the braking force.

Method used

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  • Vehicle braking device
  • Vehicle braking device
  • Vehicle braking device

Examples

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Embodiment Construction

[0013] Hereinafter, an embodiment in which the vehicle device of the present invention is applied to a vehicle will be described with reference to the drawings. The vehicle is equipped with a vehicle braking device that directly applies hydraulic braking force to each of the wheels Wfl, Wfr, Wrl, and Wrr (hereinafter, also referred to as a wheel W, front wheel Wf, and rear wheel Wr in a generalized expression) to brake the vehicle. a. In addition, the vehicle of the present embodiment is a front-wheel drive hybrid vehicle, and includes a regenerative braking device B that generates regenerative braking force at the front wheels Wf. The regenerative braking device B includes a generator B1 ( figure 1 B1). In addition, although not shown, the regenerative braking device B includes a hybrid ECU, a battery, and an inverter. The regenerative braking device B is a device that applies a regenerative braking force capable of converting kinetic energy of the vehicle into electric en...

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Abstract

The purpose of the present invention is to suppress fluctuations in master pressure caused by ABS control being carried out on a portion of the wheels of a vehicle. When ABS control is being carried out for only a portion of the wheels, a control unit in the present invention performs: first control for controlling a drive unit if the amount of liquid flowing from a master chamber is larger than apredetermined outflow amount so that in comparison to when the amount of liquid flowing therefrom is less than or equal to the predetermined outflow amount, the amount of increase in master pressureper unit time during pressure-increasing control of the master pressure increases or the amount of decrease in master pressure per unit time during pressure-decreasing control of the master pressure decreases; and / or second control for controlling the drive unit if the amount of liquid flowing into the master chamber is larger than a predetermined inflow amount so that in comparison to when the amount of liquid flowing therein is less than or equal to the predetermined inflow amount, the amount of increase in master pressure per unit time during the pressure-increasing control of the master pressure decreases or the amount of decrease in master pressure per unit time during the pressure-decreasing control of the master pressure increases.

Description

technical field [0001] The present invention relates to a brake device for a vehicle. Background technique [0002] Among vehicle brake devices, there is a drive-by-wire type vehicle brake device that adjusts and controls hydraulic pressure (master pressure) provided in a master chamber of a master cylinder independently of the operation of a brake operating member. In addition, in a general vehicle brake device, a common master chamber is connected to a plurality of wheel cylinders (even if there are a plurality of master chambers, in the case of mechanical linkage, it can also be called a common master chamber). main room). In addition, the vehicle brake device includes an actuator between the master chamber and the wheel cylinder. In the actuator, ABS control is performed according to the situation, and in decompression control in the ABS control, the fluid in the wheel cylinder is returned to the main chamber side. Such a structure is described in, for example, Japane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/1761B60T8/17B60T13/14
CPCB60T8/17B60T13/14B60T8/1761B60T13/686B60T8/4081B60T13/662B60T7/042B60T13/146B60T8/885B60T13/142B60T17/222B60T2210/12B60T2270/14
Inventor 二之夕雅树神谷雄介
Owner ADVICS CO LTD
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