Vehicle braking device

A brake device and vehicle technology, applied in the direction of brake transmission device, brake action activation device, brake, etc., can solve the problems of increased number of components, increased cost, and large size

Active Publication Date: 2019-08-06
ADVICS CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the number of components increases, and along

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle braking device
  • Vehicle braking device
  • Vehicle braking device

Examples

Experimental program
Comparison scheme
Effect test

Example

[0051] In this way, according to the first embodiment, even when an abnormality occurs in either of the first drive circuit 61 and the second drive circuit 62, the three wheels W can be made to exert the same braking force as in the normal state, and one The wheel W exerts a braking force based on the main pressure. Furthermore, according to the first embodiment, the coils of the power supply device and the solenoid valve are not doubled, but only the drive circuit is mainly added. Therefore, it is possible to suppress an increase in the number of parts, an increase in size and cost associated therewith. In other words, according to the first embodiment, an increase in the number of parts can be suppressed, and the fail-safe performance at the time of abnormality can be improved. According to the first embodiment, for example, an existing structure can be used for the constituent members of the actuator 5.

[0052] In addition, the vehicle brake device 1 of the first embodiment ...

Example

[0054]

[0055] Compared with the first embodiment, the vehicle brake device 10 of the second embodiment is mainly different in that it includes a third control valve and a fourth control valve. Therefore, the different parts are explained. In the description of the second embodiment, the description and drawings of the first embodiment can be referred to.

[0056] Such as Figure 4 As shown, the hydraulic flow path portion 53A of the second embodiment further includes a third control valve 523 and a fourth control valve 524 in addition to the structure of the hydraulic flow path portion 53 of the first embodiment. The third control valve 523 is a solenoid valve (normally open solenoid valve) that is arranged in the first main flow path 517 in series with the first control valve 518 and opens in a de-energized state. The third control valve 523 can be said to be connected in series with the first control valve 518. In the first main flow path 517, the third control valve 523 is...

Example

[0065]

[0066] Compared with the first embodiment, the vehicle brake device of the third embodiment is different in the connection structure between the first control valve 518 and the second control valve 520, and the first drive circuit 61 and the second drive circuit 62 . Therefore, the different parts are explained. In the description of the third embodiment, the description of the first embodiment and the drawings can be referred to.

[0067] Such as Figure 5 As shown, the first control valve 518 and the second control valve 520 of the third embodiment are respectively connected to the first drive circuit 61 and the second drive circuit so as to be independently controllable by the first drive circuit 61 and the second drive circuit 62. Circuit 62. The first drive circuit 61 is connected to the first control valve 518 via a lead wire 83 and is connected to the second control valve 520 via a lead wire 84. The second drive circuit 62 is connected to the first control valv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

In the present invention, a hydraulic circuit (53) comprises: a first pressure-boosting flow path (501) that connects a first main flow path and a first wheel cylinder (41); a first pressure-boostingvalve (502) that is disposed in the first pressure-boosting flow path (501) and that opens in a non-energized state; a first pressure-reducing flow path (503) that connects the first wheel cylinder (41) and a reservoir (24); a first pressure-reducing valve (504) that is disposed in the first pressure-reducing flow path (503) and that closes in a non-energized state; a second pressure-boosting flowpath (505); a second pressure-boosting valve (506); a second pressure-reducing flow path (507); and a second pressure-reducing valve (508). A control unit (6) comprises: a first drive circuit (61) that controls the first pressure-reducing valve (504); and a second drive circuit (62) that is separate from the first drive circuit (61) and that controls the second pressure-reducing valve (508).

Description

technical field [0001] The present invention relates to a brake device for a vehicle. Background technique [0002] The vehicle brake device includes a plurality of solenoid valves for adjusting the hydraulic pressure of the wheel cylinders. For example, in the vehicle braking device described in Japanese Patent Application Laid-Open No. 2001-180469, the signal lines connecting a plurality of solenoid valves and the brake ECU are divided into two signal line groups and used in each of the signal line groups. Independent connectors, thereby increasing the reliability of the device. According to this configuration, even if a failure occurs in one of the connectors, it is possible to control the solenoid valve connected to the other connector (solenoid valves corresponding to the pair of wheels located at diagonal positions). In addition, this gazette discloses a technique in which power lines of two power supply devices are connected to each solenoid valve, and each solenoid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60T8/94B60T8/17B60T13/20
CPCB60T2270/403B60T13/686B60T17/221B60T13/146B60T7/042B60T13/167B60T13/58B60T8/94B60T2270/402B60T2270/413B60T8/17
Inventor 加藤领干安藤宏幸山口贵洋增田芳夫
Owner ADVICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap