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brake control device

A technology of brake control and cylinder device, which is applied in the direction of brake transmission device, hydraulic brake transmission device, brake action activation device, etc., to achieve the effect of improving the change of rigidity

Active Publication Date: 2016-10-05
ADVICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the hydraulic braking force generated by the hydraulic braking device cannot be determined solely by the amount of depression (operating amount) of the brake pedal by the operator, but it is necessary to control the hydraulic braking pressure variably

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 approach ＞

[0030] will refer to the attached Figure 1 to Figure 3 A brake control device according to a first embodiment of the present invention will be described. figure 1 is a view explaining the overall structure of the master cylinder device 100 including the brake control device according to the first embodiment of the present invention. The master cylinder device 100 is installed in a hybrid vehicle and is used together with a regenerative braking device (not used) to form a braking system of the hybrid vehicle. like figure 1 As shown, the master cylinder device 100 is mainly composed of the master cylinder 1, the force generating device 2, the separation lock valve 22, the force valve 23, the servo hydraulic pressure generating device 4, the hydraulic control unit 5, the brake ECU 70 and various sensors 11 to 713 And 73 to 76 formed.

[0031] The master cylinder 1 supplies working fluid to the hydraulic control part 5 and is mainly formed of a master cylinder part 11 , a head...

Embodiment approach

[0107] In addition, according to the first embodiment of the present invention, the master cylinder hydraulic pressure in the first pressure chamber 1D is fed back to the fourth chamber 4E of the servo hydraulic pressure generating device 4 . Still further, the servo hydraulic pressure generating device 4 may supply the servo hydraulic pressure (drive hydraulic pressure) corresponding to the master cylinder hydraulic pressure to the servo chamber 1A, or in other words, the servo hydraulic pressure in response to the depression amount of the brake pedal 10 during the adjustment mode operation. As opposed to conventional techniques, the actuation of the first and second master pistons can be assisted even during regulation mode operation by using the servohydraulic generating device 4 to improve the response of the braking force.

[0108] It should be noted here that, instead of using the feedback supply of the master cylinder hydraulic pressure, the hydraulic pressure in respons...

no. 2 approach ＞

[0110] Next, refer to Figure 4 A second embodiment of the brake control device according to the present invention having a structure different from that of the master cylinder device 100A will be described. Figure 4 is a view illustrating an overall structure of a master cylinder device 100A including a brake control device according to a second embodiment of the present invention. The master cylinder device 100A is installed in a hybrid vehicle and forms a braking system for the hybrid vehicle together with a regenerative actuator (not shown).

[0111]The master cylinder device 100A includes a master cylinder 110A for pressurizing working fluid. The operator of the vehicle depresses the brake pedal 10F connected to the master cylinder 110A to operate the master cylinder 110A. The master cylinder 110A generates master cylinder hydraulic pressure by pressurizing working fluid therein, and thus supplies the generated master cylinder hydraulic pressure to the hydraulic pressu...

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PUM

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Abstract

The present invention is a brake control device for controlling a master cylinder device comprising a casing, an output piston, an input piston, a compartment opening / closing unit, and a driving hydraulic pressure generating unit, the brake control device being provided with : An operation control device, a brake operation determination device, and a state conversion limiting device. The operation control device is used to control the master cylinder device to be in the operating force operating state (adjustment mode) and in the driving hydraulic operating state (linear mode). In the state, the output piston is driven by the operating force on the brake operating member, and in the driving hydraulic pressure operation state, the output piston is driven by the driving hydraulic pressure from the driving hydraulic pressure generating unit; the brake operation determining device is used to determine whether the brake operation is present or not Possibilities thereof; the state transition restricting means for restricting at least one of the state transitions between the operating states when it is determined that the braking operation is present and possible. Therefore, the operating feeling of the brake operating member can be improved.

Description

technical field [0001] The invention relates to a braking control device suitable for a vehicle braking system having a hydraulic braking device and a regenerative braking device. Background technique [0002] For a hybrid vehicle using an engine and a motor / generator as a driving source for running, or for an electric vehicle using a motor / generator as a driving source for running, fuel efficiency is improved by accumulating electric energy regenerated from kinetic energy by the motor generator during braking operations has become popular. In this sense, the motor / generator is considered to be a regenerative braking device that applies regenerative braking force to driven wheels. Since sufficient braking force cannot be obtained by regenerative braking alone, it is usually provided at each wheel for use by conventional hydraulic braking devices - hydraulic braking devices driven by working fluid supplied from the master cylinder device - Devices that generate basic hydrau...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/17B60T8/00B60T13/12
CPCB60T7/042B60T13/662B60T13/686B60T8/3265B60T8/4077B60T11/20B60T11/16B60T11/103
Inventor 丸山将来野吕和誉小林达史坂田康典西尾彰高驹沢雅明神谷雄介内田清之
Owner ADVICS CO LTD
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