CN111775863A - Awakening method and system for electronic hydraulic brake system and automobile - Google Patents
Awakening method and system for electronic hydraulic brake system and automobile Download PDFInfo
- Publication number
- CN111775863A CN111775863A CN202010501428.XA CN202010501428A CN111775863A CN 111775863 A CN111775863 A CN 111775863A CN 202010501428 A CN202010501428 A CN 202010501428A CN 111775863 A CN111775863 A CN 111775863A
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- hydraulic brake
- brake system
- switch
- vehicle
- body controller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a method and a system for awakening an electronic hydraulic brake system and an automobile, wherein the method comprises the following steps: when an ignition switch of the vehicle is in an off state, judging whether a brake switch is closed, wherein the ignition switch and the brake switch are connected in parallel between a storage battery of the vehicle and a vehicle body controller; when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch sends a closing input signal to the vehicle body controller; and after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs an activation signal to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened. The invention can solve the problem that the EHB cannot be activated to work under the flameout state of the vehicle, ensure the function of a braking system of the vehicle and avoid the problem of safety accidents caused by braking failure under certain special conditions.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to an electronic hydraulic brake system awakening method and system and an automobile.
Background
The brake is an important function of the automobile, and the function of the brake is to make the running automobile perform forced deceleration or even stop according to the requirements of a driver, so that the speed of the automobile running on a downhill is kept stable. The traditional brake system consists of an operation system, a hydraulic system and a power-assisted system, wherein the operation system mainly comprises a brake pedal, hydraulic pressure mainly comprises hydraulic oil, a brake pump and a hydraulic oil pipe, and the power-assisted system is an electronic power-assisted vacuum pump. When the automobile brakes, after a driver steps on a brake pedal, the mechanical hydraulic pump pumps the brake oil into the formulating devices of all wheels to generate braking force so as to decelerate or stop the wheels.
The electronic hydraulic brake system (EHB) is developed on the basis of the traditional hydraulic brake, an electronic brake pedal is used for replacing the traditional hydraulic brake pedal in the control mechanism, and a bulky vacuum booster is eliminated, so that the brake system is electronized, and the sensitivity of the brake system is improved. After the EHB is electrified and awakened, the actuator can be controlled to act to generate braking force.
However, the conventional electronic hydraulic brake system cannot be activated to work in a vehicle flameout (ignition switch off) state, and a safety accident may be caused due to brake failure in some special conditions, for example, when the vehicle is stopped on a slope, a driver releases the parking brake first and then steps on the brake pedal to start the vehicle, so that the problem of incapability of controlling the brake may be caused, and the safety may be affected.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a wake-up method for an electronic hydraulic brake system, so as to solve the problem that the EHB cannot be activated to operate in a vehicle flameout state.
An electro-hydraulic brake system wake-up method, comprising:
when an ignition switch of the vehicle is in an off state, judging whether a brake switch is closed, wherein the ignition switch and the brake switch are connected in parallel between a storage battery of the vehicle and a vehicle body controller;
when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch sends a closing input signal to the vehicle body controller;
and after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs an activation signal to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened.
According to the awakening method of the electronic hydraulic brake system, when the ignition switch is in an off state, a driver can close the brake switch through the brake pedal, the vehicle body controller receives a closing input signal of the brake switch after the brake switch is closed, and at the moment, the vehicle body controller can continuously output an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to be activated and awakened, so that the functions of the brake system of a vehicle are ensured, and the problem of safety accidents caused by brake failure under certain special conditions is solved.
In addition, the wake-up method of the electronic hydraulic brake system according to the present invention may further have the following additional technical features:
further, after receiving the closing input signal of the brake switch, the vehicle body controller continuously outputs an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to activate and wake up, which specifically includes:
and after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs a high level to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened.
Further, when an ignition switch of the vehicle is in a closed state, the vehicle body controller continuously outputs an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to be activated and awakened.
Another objective of the present invention is to provide an electronic hydraulic brake system wake-up system to solve the problem that the EHB cannot be activated to operate in the vehicle flameout state.
An electro-hydraulic brake system wake-up system comprising:
the device comprises an ignition switch, a brake switch, a vehicle body controller and an electronic hydraulic brake system;
when the ignition switch is in an off state, judging whether the brake switch is closed, wherein the ignition switch and the brake switch are connected in parallel between a storage battery of a vehicle and the vehicle body controller;
when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch is used for sending a closing input signal to the vehicle body controller;
the vehicle body controller is used for continuously outputting an activation signal to the electronic hydraulic brake system after receiving a closing input signal of the brake switch so as to control the electronic hydraulic brake system to be activated and awakened.
According to the electronic hydraulic brake system awakening system provided by the invention, when the ignition switch is in an off state, a driver can close the brake switch through the brake pedal, and after the brake switch is closed, the vehicle body controller receives a closing input signal of the brake switch, and at the moment, the vehicle body controller can continuously output an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to activate and awaken, so that the functions of the brake system of the vehicle are ensured, and the problem of safety accidents caused by brake failure under certain special conditions is solved.
In addition, the wake-up system of the electronic hydraulic brake system according to the present invention may further have the following additional technical features:
further, the vehicle body controller is used for continuously outputting a high level to the electronic hydraulic brake system after receiving a closing input signal of the brake switch so as to control the electronic hydraulic brake system to be activated and awakened.
Further, when the ignition switch is in a closed state, the vehicle body controller is used for continuously outputting an activation signal to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened.
The invention further provides an automobile which comprises the electronic hydraulic brake system awakening system.
Drawings
The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of an electro-hydraulic brake system wake-up method according to a first embodiment of the present invention.
Fig. 2 is a block diagram of a wake-up system of an electro-hydraulic brake system according to a second embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a method for waking up an electronic hydraulic brake system according to a first embodiment of the present invention includes steps S101 to S103.
S101, when an ignition switch of the vehicle is in an off state, judging whether a brake switch is closed, wherein the ignition switch and the brake switch are connected between a storage battery of the vehicle and a vehicle body controller in parallel.
The on and off of the brake switch is controlled by a brake pedal, when the brake pedal is stepped, the brake switch is on, and otherwise, the brake switch is off.
S102, when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch sends a closing input signal to the vehicle body controller.
The vehicle Body Controller (BCM) is used as a vehicle body control unit and has the functions of network management (network wakeup and dormancy coordination) and logic input and output. Under the flameout and power-off state of the vehicle, the BCM can delay and disconnect the activation wake-up signal for controlling the EHB, and the vehicle has a delay braking function after flameout.
S103, after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to be activated and awakened.
During specific implementation, the activation signal output by the vehicle body controller to the electronic hydraulic brake system vehicle body controller is specifically a high level, that is, after receiving the closing input signal of the brake switch, the vehicle body controller continuously outputs the high level to the electronic hydraulic brake system to control the electronic hydraulic brake system to activate and wake up.
In addition, as a specific example, when an ignition switch of the vehicle is in a closed state, the vehicle body controller continuously outputs an activation signal (high level) to the electro-hydraulic brake system to control the electro-hydraulic brake system to activate wake-up, and in this case, the BCM does not receive a signal of the brake switch any more and keeps an on state to control the electro-hydraulic brake system to activate wake-up.
According to the method for waking up the electronic hydraulic brake system provided by the embodiment, when the ignition switch is in an off state, a driver can close the brake switch through the brake pedal, and after the brake switch is closed, the vehicle body controller receives a closing input signal of the brake switch, and at the moment, the vehicle body controller can continuously output an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to activate and wake up, so that the functions of the brake system of the vehicle are ensured, and the problem of safety accidents caused by brake failure under certain special conditions is solved.
Referring to fig. 2, based on the same inventive concept, a wake-up system of an electronic hydraulic brake system according to a second embodiment of the present invention includes an ignition switch 11, a brake switch 12, a body controller 13, and an electronic hydraulic brake system 14.
When the ignition switch 11 is in an off state, judging whether the brake switch 12 is closed, wherein the ignition switch 11 and the brake switch 12 are connected in parallel between a storage battery of a vehicle and the vehicle body controller 13;
when a brake pedal of a vehicle is stepped on, the brake switch 12 is closed, and the brake switch 12 is used for sending a closing input signal to the vehicle body controller 13;
the vehicle body controller 13 is configured to continuously output an activation signal to the electrohydraulic brake system 14 after receiving a closing input signal of the brake switch 12, so as to control the electrohydraulic brake system 14 to activate and wake up.
Specifically, the vehicle body controller 13 is configured to continuously output a high level to the electrohydraulic brake system 14 after receiving a closing input signal of the brake switch 12, so as to control the electrohydraulic brake system 14 to activate and wake up.
Specifically, when the ignition switch 11 is in a closed state, the vehicle body controller 13 is configured to continuously output an activation signal to the electrohydraulic brake system 14 to control the electrohydraulic brake system 14 to activate and wake up.
According to the electronic hydraulic brake system awakening system provided by the embodiment, when the ignition switch is in an off state, a driver can close the brake switch through the brake pedal, the vehicle body controller receives a closing input signal of the brake switch after the brake switch is closed, and at the moment, the vehicle body controller can continuously output an activation signal to the electronic hydraulic brake system to control the electronic hydraulic brake system to be activated and awakened, so that the functions of the brake system of the vehicle are ensured, and the problem of safety accidents caused by brake failure under certain special conditions is solved.
In addition, as a specific example, the electronic hydraulic brake system wake-up system further includes an anti-lock brake system 15 and an electronic power steering system 16, and the anti-lock brake system 15 and the electronic power steering system 16 are respectively connected to the ignition switch 11.
A third embodiment of the invention also provides an automobile comprising the electro-hydraulic brake system wake-up system of the second embodiment.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit of a logic gate circuit specifically used for realizing a logic function for a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. An electro-hydraulic brake system wake-up method, comprising:
when an ignition switch of the vehicle is in an off state, judging whether a brake switch is closed, wherein the ignition switch and the brake switch are connected in parallel between a storage battery of the vehicle and a vehicle body controller;
when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch sends a closing input signal to the vehicle body controller;
and after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs an activation signal to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened.
2. The method for waking up an electronic hydraulic brake system according to claim 1, wherein the step of the vehicle body controller continuously outputting an activation signal to the electronic hydraulic brake system after receiving the closing input signal of the brake switch to control the electronic hydraulic brake system to activate and wake up specifically comprises:
and after receiving the closing input signal of the brake switch, the automobile body controller continuously outputs a high level to the electronic hydraulic brake system so as to control the electronic hydraulic brake system to be activated and awakened.
3. The electro-hydraulic brake system wake-up method according to claim 1, wherein the body controller continuously outputs an activation signal to the electro-hydraulic brake system to control the electro-hydraulic brake system to activate wake-up when an ignition switch of a vehicle is in a closed state.
4. An electronic hydraulic brake system awakening system is characterized by comprising an ignition switch, a brake switch, a vehicle body controller and an electronic hydraulic brake system;
when the ignition switch is in an off state, judging whether the brake switch is closed, wherein the ignition switch and the brake switch are connected in parallel between a storage battery of a vehicle and the vehicle body controller;
when a brake pedal of a vehicle is stepped on, the brake switch is closed, and the brake switch is used for sending a closing input signal to the vehicle body controller;
the vehicle body controller is used for continuously outputting an activation signal to the electronic hydraulic brake system after receiving a closing input signal of the brake switch so as to control the electronic hydraulic brake system to be activated and awakened.
5. The electro-hydraulic brake system wake-up system according to claim 4, characterized in that:
and the automobile body controller is used for continuously outputting a high level to the electronic hydraulic brake system after receiving the closing input signal of the brake switch so as to control the electronic hydraulic brake system to be activated and awakened.
6. The electro-hydraulic brake system wake-up system of claim 4, wherein the body controller is configured to continuously output an activation signal to the electro-hydraulic brake system to control the electro-hydraulic brake system to activate wake-up when the ignition switch is in a closed state.
7. An automobile, characterized in that it comprises an electro-hydraulic brake system wake-up system according to any one of claims 4 to 6.
8. The vehicle of claim 7, further comprising an anti-lock braking system and an electronic power steering system, wherein the anti-lock braking system and the electronic power steering system are each coupled to the ignition switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501428.XA CN111775863B (en) | 2020-06-04 | 2020-06-04 | Awakening method and system for electronic hydraulic brake system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010501428.XA CN111775863B (en) | 2020-06-04 | 2020-06-04 | Awakening method and system for electronic hydraulic brake system and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111775863A true CN111775863A (en) | 2020-10-16 |
| CN111775863B CN111775863B (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010501428.XA Expired - Fee Related CN111775863B (en) | 2020-06-04 | 2020-06-04 | Awakening method and system for electronic hydraulic brake system and automobile |
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| Country | Link |
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| CN (1) | CN111775863B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114701473A (en) * | 2021-12-27 | 2022-07-05 | 瀚德万安(上海)电控制动系统有限公司 | Communication system of electric control brake device |
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| FR2936474A1 (en) * | 2008-09-30 | 2010-04-02 | Bosch Gmbh Robert | METHOD AND DEVICE FOR ACTIVATING THE PARKING BRAKE OF A VEHICLE |
| CN202463742U (en) * | 2012-02-08 | 2012-10-03 | 东风襄樊仪表系统有限公司 | Automobile body controller |
| CN107406047A (en) * | 2015-03-17 | 2017-11-28 | 日立汽车系统株式会社 | Vehicle console device and its control method and vehicle control system |
| CN109606338A (en) * | 2018-12-05 | 2019-04-12 | 武汉科德斯汽车电子股份有限公司 | A kind of electronic brake system and the method for waking up the system under suspend mode |
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2020
- 2020-06-04 CN CN202010501428.XA patent/CN111775863B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1509925A (en) * | 2002-11-26 | 2004-07-07 | ������������ʽ���� | Electric brake, controller thereof and controlling method for electric brake |
| FR2936474A1 (en) * | 2008-09-30 | 2010-04-02 | Bosch Gmbh Robert | METHOD AND DEVICE FOR ACTIVATING THE PARKING BRAKE OF A VEHICLE |
| CN202463742U (en) * | 2012-02-08 | 2012-10-03 | 东风襄樊仪表系统有限公司 | Automobile body controller |
| CN107406047A (en) * | 2015-03-17 | 2017-11-28 | 日立汽车系统株式会社 | Vehicle console device and its control method and vehicle control system |
| CN109606338A (en) * | 2018-12-05 | 2019-04-12 | 武汉科德斯汽车电子股份有限公司 | A kind of electronic brake system and the method for waking up the system under suspend mode |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114701473A (en) * | 2021-12-27 | 2022-07-05 | 瀚德万安(上海)电控制动系统有限公司 | Communication system of electric control brake device |
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| CN111775863B (en) | 2022-01-25 |
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Granted publication date: 20220125 |