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Vehicle Braking Device

A technology for braking devices and vehicles, which is applied in the directions of braking action starting devices, brakes, vehicle components, etc., and can solve the problem that the volume of the master cylinder has not been investigated.

Active Publication Date: 2020-01-10
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned vehicle brake device, no consideration has been made to the basic structure of the brake system, that is, the volume of the master cylinder (and the weight generated by it).
That is, there is room for improvement in the volume of the master cylinder in the existing vehicle braking device

Method used

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Examples

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no. 1 example

[0019] Embodiments of the present invention will be described below with reference to the drawings. In addition, each figure used for description is a schematic diagram, and the shape of each part may not necessarily be accurate. like figure 1 As shown, the vehicle braking device of the first embodiment includes a hydraulic pressure generation part 1, an operation amount detection part 4, an actuator (equivalent to "second hydraulic pressure generation part") 5, a brake ECU (equivalent to "braking force control Department") 6.

[0020] The hydraulic pressure generating unit 1 includes a brake operating member 11, a booster 12, a hydraulic cylinder mechanism (corresponding to a “first hydraulic pressure generating unit”) 13, and a wheel cylinder (W / C) (corresponding to a “braking force generating unit”) 14 ~17. The brake operating member 11 of the first embodiment includes a brake pedal. The booster 12 is a well-known device that boosts the pedaling force applied by the dri...

no. 2 example

[0044] In the vehicle braking device of the second embodiment, the structure corresponding to the bottoming determination part 61 of the vehicle braking device of the first embodiment (hereinafter referred to as "bottoming determination part 261") is equivalent to that of the first embodiment. The control of the bottoming out control (hereinafter referred to as "second bottoming out control") of the vehicle braking device of the present example is different from that of the vehicle braking device of the first embodiment. like Image 6 As shown, the vehicle brake device of the second embodiment is configured to include a deceleration and slip determination unit 263 for determining whether the wheels have deceleration and slip. Except for the above three points, the vehicle brake device of the second embodiment is substantially the same as the vehicle brake device of the first embodiment. Therefore, in the following description, the components that are substantially the same as...

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Abstract

The present invention provides a brake device for a vehicle, comprising: a first hydraulic pressure generating part (13), which generates pressure in main chambers (130a), (130b) whose volumes change according to the movement of master pistons (131), (132). Hydraulic pressure corresponding to the volume of the main chamber (130a), (130b); the second hydraulic pressure generating part (5), which is configured to bottom out when the advancement of the main piston (131), (132) is restricted by the master cylinder (130) In the state, desired hydraulic pressure can be generated; braking force generation parts (14) to (17), which apply braking force corresponding to the input hydraulic pressure to wheels (RL) to (FL) of the vehicle; and braking force control part (6) In the bottoming state, the second hydraulic pressure generating part (5) generates hydraulic pressure, and the hydraulic pressure is input to the braking force generating parts (14) to (17).

Description

technical field [0001] The invention relates to a brake device for vehicles. Background technique [0002] Developed a brake device for vehicles that, for example, utilizes brake assist control to generate braking force at the wheels regardless of whether the brakes are being operated. Such a brake device for a vehicle is described in, for example, Japanese Patent Application Laid-Open No. 2009-234407. In this vehicle brake device, when a predetermined time elapses in the brake assist control, the amount of pressurization to the wheel cylinders is increased to smoothly shift to ABS (Antilock Braking System) control. Thereby, shortening of the braking distance can be realized. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2009-234407 [0004] However, in the above vehicle brake device, no consideration has been made to the basic structure of the brake system, that is, the volume of the master cylinder (and the resulting weight). That is, there is room for impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/00B60T8/1761
CPCB60T8/00B60T8/1761B60T8/442B60T7/042B60T8/172B60T8/363B60T8/4013B60T8/4081B60T13/146
Inventor 牧一哉大崎慎太郎丸山将来
Owner ADVICS CO LTD
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