# US 11,027,734 B2 · Braking control method, braking system and vehicle

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- Number: US 11,027,734 B2
- Document ID: US11027734B2
- Status: Granted
- Kind: B2
- Application number: 16/408,482
- Filed: 2019-05-10
- Published: 2020-06-25
- Granted: 2021-06-08
- Earliest claimed: 2018-12-19
- Assignees: Acer Incorporated
- Applicants: Acer Incorporated
- Inventors: Liang-Yu Ke; Yu-Min Cheng
- Web page: https://patentgrep.com/patent/US11027734B2

## CPC

- B60T 7/22: initiated by contact of vehicle, e.g. bumper, with an external object, e.g. another vehicle {, or by means of contactless obstacle detectors mounted on the vehicle}
- B60W 30/181: {Preparing for stopping}
- B60W 30/17: with provision for special action when the preceding vehicle comes to a halt, e.g. stop and go
- B60W 30/18109: {Braking}
- B60W 40/04: Traffic conditions
- B60W 50/0098: {Details of control systems ensuring comfort, safety or stability not otherwise provided for}
- B60W 50/045: {Monitoring control system parameters}
- B60K 2031/0025: {Detecting position of target vehicle, e.g. vehicle driving ahead from host vehicle}
- B60W 2050/048: {displaying data transmitted between vehicles, e.g. for platooning, control of inter-vehicle distance}
- B60W 2510/18: Braking system
- B60W 2520/04: Vehicle stop
- B60T: VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL (electrodynamic brake systems for vehicle, in general B60L; brakes per se, i.e. devices where braking effect occurs, including ultimate brake actuators, F16D); ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

## Abstract

A braking control method for a braking system of a vehicle is provided according to an exemplary embodiment of the disclosure. The braking control method comprises: obtaining a total braking distance and a first speed of the vehicle; obtaining braking delay information related to the braking system, wherein the braking delay information includes first time information and second time information, the first time information reflects a delay time of a braking signal, and the second time information reflects a preparation time for performing a braking operation according to the braking signal by the braking system; obtaining deceleration information according to the total braking distance, the first speed and the braking delay information; generating the braking signal according to the deceleration information; and performing the braking operation according to the braking signal.

## Claims

### Claim 1

A braking control method for a braking system of a vehicle, comprising:
obtaining a total braking distance and a first speed of the vehicle;
obtaining a braking delay information related to the braking system, wherein the braking delay information comprises first time information and second time information;
obtaining deceleration information according to the total braking distance, the first speed and the braking delay information;
generating a first braking signal according to the deceleration information; and
performing a braking operation according to the first braking signal to stop the vehicle,
wherein the first time information corresponds to a first time range between a time point of sending of a second braking signal and a time point of start of providing a braking force by the braking system according to the second braking signal,
the second time information corresponds to a second time range in which the braking force is increased according to the second braking signal, and
the deceleration information corresponds to a deceleration of the vehicle during the braking operation for stopping the vehicle.

### Claim 2 (depends on 1)

The braking control method of claim 1, further comprising:
performing a braking simulation operation and updating the braking delay information according to the braking simulation operation or
updating the braking delay information according to the braking operation,
wherein the braking simulation operation simulates an actual braking operation performed by the braking system.

### Claim 3 (depends on 1)

The braking control method of claim 1, wherein the step of obtaining the total braking distance comprises:
evaluating a distance between the vehicle and a stopping point; and
obtaining the total braking distance according to the distance.

### Claim 4 (depends on 1)

The braking control method of claim 1, wherein the braking system does not provide the braking force within the first time range, and
the braking system provides the braking force which is increased linearly within the second time range.

### Claim 5

A braking system for a vehicle, comprising:
a braking device, configured to perform a braking operation according to a first braking signal to stop the vehicle; and
a braking controller, coupled to the braking device,
wherein the braking controller is configured to obtain a total braking distance and a first speed of the vehicle,
the braking controller is further configured to obtain a braking delay information, wherein the braking delay information comprises first time information and second time information,
the braking controller is further configured to obtain deceleration information according to the total braking distance, the first speed and the braking delay information, and
the braking controller is further configured to generate the first braking signal according to the deceleration information,
wherein the first time information corresponds to a first time range between a time point of sending of a second braking signal and a time point of start of providing a braking force by the braking system according to the second braking signal,
the second time information corresponds to a second time range in which the braking force is increased according to the second braking signal, and
the deceleration information corresponds to a deceleration of the vehicle during the braking operation for stopping the vehicle.

### Claim 6 (depends on 5)

The braking system of claim 5, wherein the braking controller is further configured to perform a braking simulation operation and update the braking delay information according to the braking simulation operation,
wherein the braking simulation operation simulates an actual braking operation performed by the braking system.

### Claim 7 (depends on 5)

The braking system of claim 5, wherein the braking controller is further configured to update the braking delay information according to the braking operation.

### Claim 8 (depends on 5)

The braking system of claim 5, wherein the operation of obtaining the total braking distance by the braking controller comprises:
evaluating a distance between the vehicle and a stopping point; and
obtaining the total braking distance according to the distance.

### Claim 9 (depends on 5)

The braking system of claim 5, wherein the braking device does not provide the braking force within the first time range, and
the braking device provides the braking force which is increased linearly within the second time range.

### Claim 10

A vehicle, comprising:
a braking system, configured to perform a braking operation according to a first braking signal to stop the vehicle,
wherein the braking system is further configured to obtain a total braking distance and a first speed of the vehicle,
the braking system is further configured to obtain a braking delay information, wherein the braking delay information comprises first time information and second time information,
the braking system is further configured to obtain deceleration information according to the total braking distance, the first speed and the braking delay information, and
the braking system is further configured to generate the first braking signal according to the deceleration information,
wherein the first time information corresponds to a first time range between a time point of sending of a second braking signal and a time point of start of providing a braking force by the braking system according to the second braking signal,
the second time information corresponds to a second time range in which the braking force is increased according to the second braking signal, and
the deceleration information corresponds to a deceleration of the vehicle during the braking operation for stopping the vehicle.
