Braking fading determining device, braking fading determining method and braking system

A technology for determining devices and methods, applied in brake control systems, brake safety systems, brakes, etc.

Inactive Publication Date: 2015-09-09
TOYOTA JIDOSHA KK
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Incidentally, the above brake fade warning device described in JP-A-2001-206218 has room for improvement, for example, with regard to determining whether a fade state is occurring

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
  • Braking fading determining device, braking fading determining method and braking system
  • Braking fading determining device, braking fading determining method and braking system
  • Braking fading determining device, braking fading determining method and braking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] figure 1 is a schematic configuration diagram of a vehicle according to this embodiment. figure 2 is the braking force distribution diagram. FIG. 3 is a flowchart illustrating an example of control performed by the ECU. Figure 4 is a conceptual diagram showing the state of isolation decay.

[0024] This embodiment generally includes the following components.

[0025] (1) Wheel speed sensors for four wheels

[0026] (2) Hydraulic sensor to determine the amount of brake operation

[0027] (3) ECU that calculates the pressure rise gradient (difference of hydraulic pressure)

[0028] (4) Body speed sensors or mechanisms and logic devices for estimating body speed

[0029] (5) ECU that measures the difference between each wheel speed (wheel acceleration) and each wheel speed

[0030] (6) Body deceleration sensor or logic device for calculating body deceleration

[0031] (7) Logical device for determining sudden braking and hard braking

[0032] (8) Logic means to ...

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

A brake fade determination device determines whether a fade state of a brake device that brakes a wheel of a vehicle is occurring on the basis of the deceleration of the vehicle and the slip amount of the wheel. A braking system includes: the brake device that is able to adjust a braking force that acts on the wheel of the vehicle; and a controller that controls the braking force to control the slip condition of the wheel. The controller determines whether a fade state of the brake device is occurring on the basis of the deceleration of the vehicle and the slip amount of the wheel, and adjusts the amount of increase or decrease in braking force on the basis of whether the fade state is occurring.

Description

technical field [0001] The invention relates to a braking attenuation determining device, a braking attenuation determining method and a braking system. Background technique [0002] Japanese Patent Application Publication No. 2001-206218 (JP-A-2001-206218) describes a brake fade warning device as a device for determining whether a fade state of a brake system used in a vehicle is occurring. The brake fade warning device determines whether a brake fade state is occurring based on a difference between a target deceleration and an actual deceleration. When the actual deceleration is smaller than the target deceleration and the difference between the actual deceleration and the target deceleration is greater than or equal to a predetermined value, the brake fade warning device determines that brake fade may be occurring, and then prompts the driver to pay attention. [0003] Incidentally, the above brake fade warning device described in JP-A-2001-206218 has room for improvemen...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22B60T8/172
CPCB60T8/885B60T17/22B60T2270/406B60T8/17616B60T17/221
Inventor 宇高聪
Owner TOYOTA JIDOSHA KK
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