A kind of complemental brake system and control method of active anti-reverse collision
Technical field
The complemental brake system collided the present invention relates to field of automobile safety more particularly to a kind of active anti-reverse and control
Method.
Background technique
With the development of social economy and the progress of science and technology, more and more average families start to possess oneself small
Automobile, inevitable traffic accident incidence is also rising with it, and existing automotive safety technology, mainly concentrates on pacifying
Full warning aspect, using less on active safety, and most of vehicle can only carry out simple early warning carrying out reversing,
Driver is relied primarily on to avoid collision by visual observation, and it is often this when be all easy to happen collision phenomenon, serious shadow
The safety of people is rung, for this purpose, proposing the complemental brake system and control method of a kind of active anti-reverse collision.
Summary of the invention
The technical problem to be solved by the present invention is to it is anti-to provide a kind of active for defect involved in background technique
The complemental brake system and control method of reverse collision.
The present invention uses following technical scheme to solve above-mentioned technical problem:
A kind of complemental brake system of active anti-reverse collision, comprising grade radar detedtor, wheel speed sensors, vehicle-mounted ECU,
GPS positioning module, display screen, voice cue module, braking motor and auxiliary brake;
Grade radar detedtor setting in vehicle tail, for incude rear of vehicle obstacle relative to the distance of vehicle and
Speed, and pass it to the vehicle-mounted ECU;
The wheel speed sensors are arranged on a rear-wheel of vehicle, for measuring the speed of vehicle and the direction of vehicle, and will
It passes to the vehicle-mounted ECU;
The GPS positioning module is used to detect the GPS coordinate of vehicle, and passes it to the vehicle-mounted ECU;
The auxiliary brake is used to carry out auxiliary braking to vehicle;The output end of the braking motor and the auxiliary brake
It is connected, for driving the auxiliary brake to work;
The vehicle-mounted ECU respectively with the grade radar detedtor, wheel speed sensors, GPS positioning module, display screen, voice
Cue module, braking motor are electrically connected, for vehicle in reversing according to grade radar detedtor, wheel speed sensors, GPS
The sensed data control display screen of locating module, voice cue module, braking motor work.
The invention also discloses a kind of control methods of the complemental brake system of active anti-reverse collision, include following step
It is rapid:
Step 1), vehicle launch, grade radar detedtor, wheel speed sensors, GPS positioning module measure rear of vehicle barrier respectively
Hinder relative to the distance L and speed V of vehicle, the direction of the speed V1 of vehicle and vehicle, vehicle GPS coordinate, and transmitted
To the vehicle-mounted ECU;
Step 2, vehicle-mounted ECU judge that the direction of vehicle is facing forward or backwards;
Step 2.1), if the direction of vehicle is backwards:
Step 2.1.1), vehicle-mounted ECU control display screen show current vehicle GPS coordinate and rear of vehicle obstacle relative to
The distance L and speed V of vehicle;
Step 2.1.2), the speed V1 of vehicle and preset threshold speed are compared by vehicle-mounted ECU;
Step 2.1.2.1), if the speed V1 of vehicle is greater than preset threshold speed, vehicle-mounted ECU controls braking motor work,
Driving auxiliary brake is braked, until the speed V1 of vehicle is less than or equal to preset threshold speed;
Step 2.1.3), vehicle-mounted ECU judges that whether there are obstacles for rear of vehicle, if there is:
Step 2.1.3.1), vehicle-mounted ECU is calculated according to rear of vehicle obstacle relative to the speed V of vehicle, the speed V1 of vehicle
The movement velocity V2 of barrier;
Step 2.1.3.2), vehicle-mounted ECU compares L and preset safety distance threshold LmIf L < Lm:
Step 2.1.3.2.1), vehicle-mounted ECU controls voice cue module and issues early warning;
Step 2.1.3.2.2), vehicle-mounted ECU calculates current safety according to the speed V1 and barrier speed V2 of current vehicle
Speed;
Step 2.1.3.2.3), vehicle-mounted ECU controls braking motor work, and driving auxiliary brake is braked, until vehicle
Speed is less than or equal to current safe speed.
The further prioritization scheme of control method of complemental brake system as a kind of present invention active anti-reverse collision,
The preset speed threshold value is 1m/s.
The invention adopts the above technical scheme compared with prior art, has following technical effect that
1. the complemental brake system of active anti-reverse collision, the case where carrying out detection rear of vehicle using grade radar, energy
Enough efficiently solve the excessive drawback in the blind area of conventional detectors.
2. in real time showing the situation for rear obstacle of driving a vehicle by display screen, driver can be good at understanding reversing
When driving, rear of vehicle barrier state.
3. working as vehicle backing when driving, intelligent electric machine drives auxiliary brake to carry out Control for Speed Limitation to vehicle, prevents from driving
To carry out reversing bring dangerous since accelerator pedal is accidentally considered as brake pedal by nervous or fatigue by member, judges exist in vehicle-mounted ECU
Emergency braking is carried out when risk of collision, it, can be very big to avoid driver cannot timely make corresponding reflection and collide
The safety for increasing reverse travel.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the complemental brake system of active anti-reverse collision of the present invention;
Fig. 2 is a kind of flow diagram of the complemental brake system control method of active anti-reverse collision of the present invention.
Specific embodiment
Technical solution of the present invention is described in further detail with reference to the accompanying drawing:
The present invention can be embodied in many different forms, and should not be assumed that be limited to the embodiments described herein.On the contrary, providing
These embodiments are thoroughly and complete to make the disclosure, and will give full expression to the scope of the present invention to those skilled in the art.
In the accompanying drawings, for the sake of clarity it is exaggerated component.
As shown in Figure 1, a kind of complemental brake system of active anti-reverse collision of disclosure of the invention, is visited comprising grade radar
Survey device, wheel speed sensors, vehicle-mounted ECU, GPS positioning module, display screen, voice cue module, braking motor and auxiliary brake;
Grade radar detedtor setting in vehicle tail, for incude rear of vehicle obstacle relative to the distance of vehicle and
Speed, and pass it to the vehicle-mounted ECU;
The wheel speed sensors are arranged on a rear-wheel of vehicle, for measuring the speed of vehicle and the direction of vehicle, and will
It passes to the vehicle-mounted ECU;
The GPS positioning module is used to detect the GPS coordinate of vehicle, and passes it to the vehicle-mounted ECU;
The auxiliary brake is used to carry out auxiliary braking to vehicle;The output end of the braking motor and the auxiliary brake
It is connected, for driving the auxiliary brake to work;
The vehicle-mounted ECU respectively with the grade radar detedtor, wheel speed sensors, GPS positioning module, display screen, voice
Cue module, braking motor are electrically connected, for vehicle in reversing according to grade radar detedtor, wheel speed sensors, GPS
The sensed data control display screen of locating module, voice cue module, braking motor work.
As shown in Fig. 2, the invention also discloses a kind of control method of the complemental brake system of active anti-reverse collision,
It comprises the steps of:
Step 1), vehicle launch, grade radar detedtor, wheel speed sensors, GPS positioning module measure rear of vehicle barrier respectively
Hinder relative to the distance L and speed V of vehicle, the direction of the speed V1 of vehicle and vehicle, vehicle GPS coordinate, and transmitted
To the vehicle-mounted ECU;
Step 2, vehicle-mounted ECU judge that the direction of vehicle is facing forward or backwards;
Step 2.1), if the direction of vehicle is backwards:
Step 2.1.1), vehicle-mounted ECU control display screen show current vehicle GPS coordinate and rear of vehicle obstacle relative to
The distance L and speed V of vehicle;
Step 2.1.2), the speed V1 of vehicle and preset threshold speed are compared by vehicle-mounted ECU;
Step 2.1.2.1), if the speed V1 of vehicle is greater than preset threshold speed, vehicle-mounted ECU controls braking motor work,
Driving auxiliary brake is braked, until the speed V1 of vehicle is less than or equal to preset threshold speed;
Step 2.1.3), vehicle-mounted ECU judges that whether there are obstacles for rear of vehicle, if there is:
Step 2.1.3.1), vehicle-mounted ECU is calculated according to rear of vehicle obstacle relative to the speed V of vehicle, the speed V1 of vehicle
The movement velocity V2 of barrier;
Step 2.1.3.2), vehicle-mounted ECU compares L and preset safety distance threshold LmIf L < Lm:
Step 2.1.3.2.1), vehicle-mounted ECU controls voice cue module and issues early warning;
Step 2.1.3.2.2), vehicle-mounted ECU calculates current safety according to the speed V1 and barrier speed V2 of current vehicle
Speed;
Step 2.1.3.2.3), vehicle-mounted ECU controls braking motor work, and driving auxiliary brake is braked, until vehicle
Speed is less than or equal to current safe speed.
The preset speed threshold value is preferentially set as 1m/s.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in fields of the present invention.Also
It should be understood that those terms such as defined in the general dictionary should be understood that have in the context of the prior art
The consistent meaning of meaning will not be explained in an idealized or overly formal meaning and unless defined as here.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.