CN110733481B - Auxiliary braking control system for safe driving of vehicle - Google Patents

Auxiliary braking control system for safe driving of vehicle Download PDF

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Publication number
CN110733481B
CN110733481B CN201910960051.1A CN201910960051A CN110733481B CN 110733481 B CN110733481 B CN 110733481B CN 201910960051 A CN201910960051 A CN 201910960051A CN 110733481 B CN110733481 B CN 110733481B
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brake
control module
vehicle
logic control
module
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CN110733481A (en
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石学坤
马鹏
周垚
翟锋涛
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Zhengzhou Yutong Heavy Industry Co Ltd
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Zhengzhou Yutong Heavy Industry Co Ltd
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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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
    • 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
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

The invention provides a vehicle safe driving auxiliary brake control system, which comprises a brake logic control module; one or more vehicle braking demand state detection modules connected with the braking logic control module; the auxiliary braking selection module is connected with the braking logic control module; the brake control module is connected with the brake logic control module and is connected with the brake actuating mechanism; the vehicle speed detection module is connected with the brake logic control module; the power output control module is connected with the brake logic control module and is connected with the power output module; and the driving intention detection module is connected with the brake logic control module and is used for sending a current driving intention signal to the brake logic control module. The auxiliary brake system is arranged, so that the vehicle brake system can be controlled to brake the whole vehicle when the vehicle is required to be braked, the power system is prohibited from outputting power, and the driving risk caused by unexpected power output is prevented.

Description

Auxiliary brake control system for safe driving of vehicle
Technical Field
The invention relates to an auxiliary brake control system for safe driving of a vehicle, and belongs to the technical field of safe driving of vehicles.
Background
Along with the improvement of the living standard of people, the quality requirement of people on living environment is higher and higher, more and more garbage waste materials are generated in daily life of people, the environmental sanitation problem is more and more emphasized by people, and therefore the demand of sanitation vehicles is more and more increased. Along with the increasing number of sanitation vehicles passing through crowds, the safety problem of the vehicles is also paid more and more attention by people. The work that sanitation vehicle is responsible for is more complicated, if have the maintenance type vehicle of being responsible for road maintenance, guardrail clearance, also has the garbage transfer type vehicle of being responsible for domestic waste clearance and transporting, no matter which kind of sanitation vehicle, all has the condition of operation and the operation of fixed point short time of stopping at any time. In the operation mode, the vehicle is frequently started and stopped, the operation intensity of a driver is high, particularly, the driver needs to step on a brake pedal for braking for a long time in short-time parking operation, the operation intensity is high, and the safety risk of braking brought along with the operation intensity is high. Therefore, an auxiliary braking system which can adapt to the special operation mode of the sanitation vehicle is needed, the braking operation of a driver is optimized, the operation intensity of the driver vehicle is reduced, and the safe operation time of the vehicle is ensured as much as possible.
At present, most sanitation vehicles on the market generally adopt two braking methods of a pedal and a hand brake, when the vehicles are stopped for a short time, such as the road surface is cleaned at a fixed point for a short time or the vehicles enter a garbage station to unload the operation garbage, drivers often need to step on the brake pedal or pull the hand brake for a long time to ensure the stability of the vehicles, in addition, most sanitation vehicles are all responsible for the operation of the vehicles and the operation of the vehicles by one person, the driving strength is high, and the damage of operation mechanisms caused by the unexpected driving of the vehicles due to misoperation of the drivers also often occurs. If the vehicle can automatically detect and identify the braking demand state, the vehicle running risk is greatly reduced, and the personal and property safety is guaranteed.
Disclosure of Invention
The auxiliary braking control system for safe driving of the vehicle can automatically detect and identify the braking demand state of the vehicle, control the braking system of the vehicle to brake the whole vehicle, simultaneously prohibit the power system from outputting power, and prevent driving risks caused by unexpected power output.
The invention adopts the following technical scheme:
a vehicle safe driving auxiliary brake control system comprising:
a brake logic control module;
the system comprises one or more vehicle braking demand state detection modules connected with a braking logic control module, wherein the one or more vehicle braking demand state detection modules are used for acquiring vehicle braking demand and sending the vehicle braking demand to the braking logic control module;
the auxiliary braking selection module is connected with the braking logic control module and is used for sending a braking state signal to the braking logic control module;
the brake control module is connected with the brake actuating mechanism and is used for receiving a brake control instruction of the brake logic control module, controlling the brake actuating mechanism to act and feeding back a brake execution state to the brake logic control module;
the vehicle speed detection module is connected with the brake logic control module and is used for sending a current vehicle speed signal to the brake logic control module;
the power output control module is connected with the power output module and used for receiving a power control command sent by the brake logic control module, controlling the power output module to act and feeding back a power output state to the brake logic control module;
the driving intention detection module is connected with the braking logic control module and is used for sending a current driving intention signal to the braking logic control module.
Further, the brake logic control module is a separate module and can be integrated in other modules.
Further, the vehicle braking demand state detection module comprises a working mechanism support leg retraction state sensor and/or a large box lifting homing state detection sensor and/or a cab door non-closing state detection sensor.
Further, the auxiliary brake selection module comprises three state signals of an automatic braking state, a forced braking state and a forced braking release state.
The invention also provides a control method of the control system, which comprises the following steps:
step 100: after the auxiliary brake selection module sends an automatic brake state signal to the brake logic control module, the brake logic control module acquires a vehicle speed signal of the vehicle speed detection module and judges whether the current vehicle is in a parking state;
step 200: if the vehicle is in the parking state, the brake logic control module judges whether the received brake demand state information of at least one vehicle brake demand state detection module in the one or more vehicle brake demand state detection modules is valid;
step 300: if the brake is valid, the brake logic control module sends a signal to the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module does not respond to the driving intention signal sent by the driving intention detection module; if the braking demand state information of all the vehicle braking demand state detection modules is invalid, the braking logic control module sends a signal to the braking control module to remove the whole vehicle braking, and meanwhile, the braking logic control module recovers to respond the driving intention signal sent by the driving intention detection module.
Further still include: step 400: after the auxiliary braking selection module sends a forced braking state signal to the braking logic control module, no matter whether the braking demand state information of the vehicle braking demand state detection module is effective or not, when the braking logic control module judges that the vehicle is in a parking state, the braking logic control module controls the braking control module to brake the whole vehicle, and meanwhile, the braking logic control module controls the power output module not to respond to the driving intention signal sent by the driving intention detection module.
Further still include: step 500: after the auxiliary brake selection module sends a forced brake release state signal to the brake logic control module, no matter whether the brake demand state information of the vehicle brake demand state detection module is effective or not, the brake logic control module does not control the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module does not control whether the power output module responds to the driving intention signal sent by the driving intention detection module or not.
Further, in step 100, after the auxiliary brake selection module sends an automatic braking state signal to the brake logic control module, the brake logic control module obtains a vehicle speed signal of the vehicle speed detection module and determines whether the current vehicle is in a parking state includes:
the braking logic control module acquires that the speed signal of the speed detection module is zero and continues for a set time, and the vehicle is judged to be in a parking state.
Further, in step 300, the braking logic control module determines whether the received braking demand state information of at least one vehicle braking demand state detection module of the one or more vehicle braking demand state detection modules is valid;
if the vehicle driving intention detection module is changed from effective to invalid, whether a vehicle driving intention signal is output by the vehicle driving intention detection module is judged firstly, if the current vehicle driving intention detection module does not output the vehicle driving intention signal, the brake logic control module sends a signal to the brake control module to release the whole vehicle brake, meanwhile, the brake logic control module releases the control on the power output module, and the power output module normally responds to the vehicle driving intention signal sent by the vehicle driving intention detection module;
the invention has the beneficial effects that: the auxiliary brake system is arranged, so that the vehicle brake system can be controlled to brake the whole vehicle when the vehicle is required to be braked, the power system is prohibited from outputting power, and the driving risk caused by unexpected power output is prevented.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
Fig. 3 is a schematic diagram of another embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
The auxiliary braking control system for safe driving of the vehicle is used for automatically detecting and identifying the state of the vehicle and performing auxiliary braking on the vehicle.
The system comprises a braking logic control module, and also comprises one or more vehicle braking demand state detection modules, an auxiliary braking selection module, a driving intention detection module, a braking control system, a power output control system and a vehicle speed detection module which are connected with the braking logic control module.
The one or more vehicle braking demand state detection modules are used for judging whether vehicle braking is needed, the braking logic control module receives braking demand state detection information sent by the one or more vehicle braking demand state detection modules, and if the braking demand state detection signal is effective, braking is needed.
The auxiliary brake selection module is used for sending a brake state signal to the brake logic control module, the brake control signal comprises three state signals of an automatic brake state, a forced brake state and a forced brake release state, and the brake logic control module carries out corresponding brake operation after receiving the corresponding state signal sent by the auxiliary brake selection module.
The brake control module is connected with the brake logic control module and is used for controlling the brake actuating mechanism connected with the brake control module to brake or release the brake, and meanwhile, the current brake actuating state can be fed back to the brake logic control module, namely the brake state is the non-brake state.
The vehicle speed detection module is used for detecting the current speed of the vehicle and sending a current vehicle speed signal to the brake logic control module.
The power output control module is connected with the brake logic control module and used for receiving the power control instruction sent by the brake logic control module and controlling the power output module to act so as to carry out vehicle driving or stopping operation, and simultaneously feeding back the power output state to the brake logic control module.
The driving intention detection module is used for sending a current driving intention signal to the braking logic control module, and the braking logic control module can control the power output control module to act after detecting the signal.
The brake logic control module is a core control module of the invention, and the brake logic control module may be a module which exists independently or may be integrated in other whole vehicle logic control modules. In one or more possible embodiments, the brake logic control module may be integrated into a vehicle controller VCU, which is ubiquitous in modern vehicles for managing vehicle status, coordinating chassis power control, and integrating the brake logic control module into the vehicle controller VCU is an economical and reasonable design.
The vehicle braking demand state detection module may be a plurality of detection modules according to the vehicle mechanism and braking demand, and in one or more possible embodiments, the vehicle braking demand state detection module includes, but is not limited to, a working mechanism leg retraction state sensor and/or a large box lifting homing state detection sensor and/or a cab door non-closing state detection sensor and/or a driver off-seat sensor. And the valid state of the vehicle braking demand state information is defined as the state that the support legs of the vehicle operation mechanism are not retracted, the lifting big box is not reset, the cab door is not closed, the driver is out of the seat and the like in the vehicle states which are identified as safe risks for driving, and when one piece of braking demand state information is detected, the vehicle starts to judge whether to brake or not in response to the braking demand.
The driving intention detection module is a direct sensing module for controlling the driving of the vehicle by the driver, and is usually referred to as a vehicle accelerator pedal, but not limited to the accelerator pedal, such as an accelerator rotary handle.
The brake control system is a brake system capable of generating a braking effect on a vehicle, and comprises a brake controller and a brake actuating mechanism, wherein the brake controller is connected with and controls the brake actuating mechanism. Modern vehicles are already equipped with an EBS (electronic Controlled Brake system) Brake control system, which is already conventional, so that one or more possible embodiments of the invention may use the EBS and its Brake actuators as a Brake control module, where the Brake actuators may be pneumatic brakes, as well as hydraulic brakes or other types of brakes.
The power output control system refers to a power system capable of outputting driving power to the whole vehicle, and the power system generally comprises a power output controller and a power output device, wherein the power output controller may be an engine controller or a motor controller, the power output device may be a fuel engine or an electric motor, and the power output controller is connected with and controls the power output device. In one or more possible embodiments of the invention, the vehicle belongs to a pure electric sanitation operation vehicle, and therefore, a power output control system of the vehicle refers to a motor and a motor controller.
The vehicle speed detection module is used for acquiring current actual vehicle speed information, and in one or more possible embodiments, the vehicle speed detection module includes an engine or a motor output shaft end rotation speed detection device, such as a rotation speed sensor, and may also be a wheel speed detection module on a wheel or a wheel speed signal transmitted by an ABS system. The VCU of the vehicle controller can calculate the speed of the whole vehicle through the rotating speed of the motor transmitted by the rotating speed sensor at the output shaft end of the motor. The ABS (Anti-lock brake system) Anti-lock system is currently installed in various types of vehicles, so the device is a conventional configuration of the vehicle, and the ABS system is equipped with a wheel speed sensor, which can directly detect the speed of the vehicle wheel and send it to the VCU of the vehicle controller.
The auxiliary brake selection module can be a rocker switch with three states, respectively corresponds to an automatic brake state, a forced brake state and a forced brake release state, and can be installed at positions such as a cab instrument desk and an operation panel; however, the present invention is not limited to the above switch states, as long as the driver's selection intention can be transmitted to the brake logic control module, and for example, the driver's selection intention may not be a real object but be integrated in the cab instrument and selected through the instrument operation interface.
The invention also provides a method for controlling braking by applying the vehicle safe driving auxiliary braking control system, which comprises the following steps:
step 100: after the auxiliary brake selection module sends an automatic brake state signal to the brake logic control module, the brake logic control module acquires a vehicle speed signal of the vehicle speed detection module and judges whether the current vehicle is in a parking state.
Step 200: if the vehicle is in the parking state, the brake logic control module judges whether the received brake demand state information of at least one vehicle brake demand state detection module in the one or more vehicle brake demand state detection modules is valid.
Step 300: if the brake is valid, the brake logic control module sends a signal to the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module does not respond to the driving intention signal sent by the driving intention detection module; if the braking demand state information of all the vehicle braking demand state detection modules is invalid, the braking logic control module sends a signal to the braking control module to release the whole vehicle braking, meanwhile, the braking logic control module releases the control of the power output module, and the power output module restores to respond to the driving intention signal sent by the driving intention detection module.
Step 400: after the auxiliary braking selection module sends a forced braking state signal to the braking logic control module, no matter whether the braking demand state information of the vehicle braking demand state detection module is effective or not, when the braking logic control module judges that the vehicle is in a parking state, the braking logic control module controls the braking control module to brake the whole vehicle, and meanwhile, the braking logic control module controls the power output module not to respond to the driving intention signal sent by the driving intention detection module.
Step 500: after the auxiliary brake selection module sends a forced brake release state signal to the brake logic control module, no matter whether the brake demand state information of the vehicle brake demand state detection module is effective or not, the brake logic control module does not control the brake control module to brake the whole vehicle, meanwhile, the brake logic control module does not control the power output module, and the power output module normally responds to the driving intention signal sent by the driving intention detection module.
In the step 100, determining whether the current vehicle is in the parking state includes: the braking logic control module acquires that the speed signal of the speed detection module is zero and continues for a set time, and the vehicle is judged to be in a parking state.
In the step 300, the braking logic control module determines whether the received braking demand state information of at least one vehicle braking demand state detection module of the one or more vehicle braking demand state detection modules is valid; if the driving intention detection module is changed from effective to ineffective, whether a driving intention signal is output by the driving intention detection module is judged firstly, if the current driving intention detection module does not output the driving intention signal, the braking logic control module sends a signal to the braking control module to release the whole vehicle braking, meanwhile, the braking logic control module releases the control of the power output module, and the power output module restores to respond to the driving intention signal sent by the driving intention detection module.
In a possible embodiment of the present invention, as shown in fig. 1, the vehicle control unit VCU of the auxiliary brake control system is connected to the leg recovery state sensor and the rotation speed sensor of the work mechanism, at this time, the leg recovery state sensor of the work mechanism is a vehicle braking demand state detection module, and is a proximity switch sensor, and is installed beside the telescopic leg through the bracket, and the leg is considered to be retracted when the proximity switch does not detect the leg state.
In this embodiment, the vehicle control unit VCU first determines whether the vehicle is currently in a parking state according to the rotation speed signal transmitted from the rotation speed sensor, and determines that the parking state is based on the fact that the current rotation speed signal is detected to be 0. When the vehicle is judged to be in a parking state, and the auxiliary brake selection switch selects an automatic braking state, the vehicle control module VCU starts to judge whether a signal transmitted by the working mechanism supporting leg retraction state sensor is that a supporting leg is retracted, if the supporting leg is not retracted, the vehicle control module does not respond to an accelerator pedal signal, and simultaneously sends a standby signal and a 0 torque signal to prohibit the power output of the motor control system, and the brake control is not released until the supporting leg is detected to be in the retracted state, so that the vehicle is allowed to respond to the accelerator pedal signal and output power for driving.
In order to avoid misjudgment of the parking state, the detection output speed is 0, and the whole vehicle is judged to be in the parking state after a certain time, wherein the time can be calibrated according to the actual condition. To avoid the risk of the driver having to depress the accelerator pedal before leg retraction, which would cause the vehicle to respond to power output immediately after leg retraction, the control logic requires that the accelerator pedal must be detected as being released after leg retraction before torque is output in response to the accelerator pedal. In order to avoid the risk that the vehicle is not driven and intended to drive after the landing leg is retracted due to the fact that the vehicle is stopped on a slope or other conditions, the control logic requires that the auxiliary brake control is not released until a hand brake signal is detected after the landing leg is retracted, otherwise the auxiliary brake control is not released.
When the auxiliary brake selection switch selects the forcible brake release state, the finished automobile control module VCU does not judge the state of the supporting legs any more, does not output brake control any more, and does not prohibit the power output of the finished automobile. The braking system of the vehicle itself is independent of the braking system of the invention, so that the vehicle remains braked if the handbrake is pulled or the footbrake is depressed at this time. The mode can avoid the influence on the normal running of the vehicle due to the mistaken opening of the auxiliary brake of the vehicle caused by the fault of the landing leg retracting state sensor.
When the auxiliary brake selection module selects a forced braking state, the whole vehicle control module directly controls the EBS braking system to brake the whole vehicle, and simultaneously prohibits the power output of the whole vehicle. In order to avoid abnormal braking of the vehicle caused by the condition that a driver mistakenly touches the vehicle in the driving process, the condition also needs to detect that the vehicle is in a parking state, and the forced auxiliary braking function is triggered. And meanwhile, the forced auxiliary braking state is relieved, and a driver is also required to pull up a hand brake or step down a foot brake.
In another possible embodiment of the present invention, as shown in fig. 2, the vehicle braking demand state detection module detects three states, that is, a work mechanism leg retraction state sensor, a trunk lift home state sensor, and a cab door not-closed state sensor.
The large box lifting homing state sensor is usually arranged at the bottom of a frame, and can be a proximity switch or other devices capable of feeding back the homing of the large box, such as a pressure sensor. Part of sanitation vehicles have a large box lifting operation function, the sanitation vehicles are required to be in a parking state under normal conditions, and accidental driving can cause danger, so that the state is necessary to be used as an auxiliary braking state detection condition. Cab door not closed status sensors are commonly installed in modern vehicles to identify that the cab door is not normally closed and are not described in detail herein. When the door is not closed, it is also a dangerous condition for the driver to directly depress the accelerator pedal, so that it is necessary to use this condition as one of the conditions for detecting the auxiliary braking state. Under the condition that other conditions are met, any one of the three states does not meet the driving requirement, and the vehicle braking requirement is considered to be effective, and at this time, the braking control can be realized through the control method in the embodiment shown in fig. 1, so that the description in the embodiment is omitted.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the present invention should be covered by the present invention.

Claims (4)

1. A vehicle safe driving auxiliary brake control system, characterized by comprising:
the brake logic control module is integrated in a Vehicle Control Unit (VCU), and the VCU is arranged in a vehicle;
the system comprises one or more vehicle braking demand state detection modules connected with a braking logic control module, wherein the one or more vehicle braking demand state detection modules are used for acquiring vehicle braking demand and sending the vehicle braking demand to the braking logic control module; the vehicle braking demand state detection module comprises a large box lifting homing state detection sensor;
the auxiliary braking selection module is connected with the braking logic control module and is used for sending a braking state signal to the braking logic control module; the auxiliary brake selection module comprises three state signals of an automatic brake state, a forced brake state and a forced brake release state;
the brake control module is connected with the brake execution mechanism and is used for receiving a brake control instruction of the brake logic control module, controlling the brake execution mechanism to act and feeding back a brake execution state to the brake logic control module;
the vehicle speed detection module is connected with the brake logic control module and is used for sending a current vehicle speed signal to the brake logic control module;
the power output control module is connected with the power output module and is used for receiving a power control command sent by the brake logic control module, controlling the power output module to act and feeding back a power output state to the brake logic control module;
and the driving intention detection module is connected with the brake logic control module and is used for sending a current driving intention signal to the brake logic control module, and when the vehicle is in a parking state, the large box is lifted for operation.
2. A vehicle safe driving auxiliary brake control system according to claim 1, characterized in that: the brake logic control module is a single module and can be integrated in other modules.
3. A control method using the vehicle safe driving auxiliary brake control system according to any one of claims 1 to 2, characterized by comprising:
step 100: after the auxiliary brake selection module sends an automatic brake state signal to the brake logic control module, the brake logic control module acquires a vehicle speed signal of the vehicle speed detection module and judges whether the current vehicle is in a parking state;
step 200: if the vehicle is in the parking state, the brake logic control module judges whether the received brake demand state information of at least one vehicle brake demand state detection module in the one or more vehicle brake demand state detection modules is valid;
step 300: if the brake is valid, the brake logic control module sends a signal to the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module does not respond to the driving intention signal sent by the driving intention detection module; if the braking demand state information of all the vehicle braking demand state detection modules is invalid, the braking logic control module sends a signal to the braking control module to release the whole vehicle braking, and meanwhile, the braking logic control module recovers to respond to the driving intention signal sent by the driving intention detection module;
in step 100, after the auxiliary brake selection module sends an automatic braking state signal to the brake logic control module, the brake logic control module obtains a vehicle speed signal of the vehicle speed detection module and determines whether the current vehicle is in a parking state includes:
the braking logic control module acquires the time that the speed signal of the speed detection module is zero and continues to set, and judges that the vehicle is in a parking state;
step 400: after the auxiliary brake selection module sends a forced brake state signal to the brake logic control module, no matter whether the brake demand state information of the vehicle brake demand state detection module is effective or not, when the brake logic control module judges that the vehicle is in a parking state, the brake logic control module controls the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module controls the brake power output module not to respond to a driving intention signal sent by the driving intention detection module;
step 500: after the auxiliary brake selection module sends a forcible brake release state signal to the brake logic control module, no matter whether the brake demand state information of the vehicle brake demand state detection module is effective or not, the brake logic control module does not control the brake control module to brake the whole vehicle, and meanwhile, the brake logic control module does not control whether the power output module responds to the driving intention signal sent by the driving intention detection module or not.
4. A control method of a vehicular safe-driving assist brake control system according to claim 3, characterized in that:
in step 300, the brake logic control module determines whether the received brake demand state information of at least one vehicle brake demand state detection module of the one or more vehicle brake demand state detection modules is valid;
if the driving intention signal is not output, the braking logic control module sends a signal to the braking control module to release the whole vehicle braking, and meanwhile, the braking logic control module releases the control of the power output module, and the power output module normally responds to the driving intention signal sent by the driving intention detection module.
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