Brake control device and brake control method for vehicle using auto leveling sensor and electronic booster

Patent metadata

Field	Value
Publication number	US-11745596-B2
Application number	US-202017032444-A
Country	US
Kind code	B2
Filing date	Sep 25, 2020
Priority date	Sep 26, 2019
Publication date	Sep 5, 2023
Grant date	Sep 5, 2023

Abstract

The present invention relates to a brake control device and a brake control method for a vehicle comprising a plurality of brakes which are respectively installed on wheels, the brake control device comprising an auto leveling sensor which senses a load state of the vehicle according to a change in an angle; a control unit which calculates a correction value according to the load state of the vehicle sensed by the auto leveling sensor; and an electronic brake booster which corrects a predetermined braking power set according to a brake pedal force with the calculated correction value so that the braking operation of each brake is made.

First claim

What is claimed is:

1. A brake control device for a vehicle comprising a plurality of brakes which are respectively installed on wheels, comprising:
an auto leveling sensor which senses a load state of the vehicle according to a change in an angle;
a control unit which calculates a correction value according to the load state of the vehicle sensed by the auto leveling sensor;
an electronic brake booster which corrects a predetermined braking power set according to a brake pedal force with the calculated correction value so that the braking operation of each brake is made; and
a speed sensor which senses a deceleration rate of the vehicle upon braking operation of the brake according to the correction value;
wherein when the sensed deceleration rate exceeds a predetermined deceleration rate, the electronic brake booster ignores the correction value so that the braking operation of each brake is made with the predetermined braking power set according to the brake pedal force.

2. A brake control method for a vehicle comprising a plurality of brakes which are respectively installed on wheels, comprising the steps of:
(a) sensing a load state of the vehicle according to a change in an angle of an auto leveling sensor (S 100 );
(b) calculating, by the control unit, a correction value according to the load state of the vehicle sensed by the auto leveling sensor (S 200 );
(c) correcting, by an electronic brake booster, a predetermined braking power set according to a brake pedal force by the calculated correction value so that the braking operation of each brake is made (S 300 ); and
(d) when a deceleration rate of the vehicle sensed by a speed sensor exceeds a predetermined deceleration (S 400 ), after the step (c), ignoring, by the electronic brake booster, the correction value so that the braking operation of each brake is made with the predetermined braking power (S 500 ).

Assignees

• Gm Global Tech Operations Llc

Inventors

• Back Bongbum

Classifications

• B60L7/26 Primary

  Controlling the braking effect · CPC title

• B60L15/2009

  for braking · CPC title

• B60L2240/12

  Speed · CPC title

• B60L2250/26

  by pedal actuation · CPC title

• B60T2270/602

  ABS features related thereto · CPC title