A kind of car ACCEL Anti-mis-stepping system and method
Technical field
The present invention and technical field of vehicle safety, particularly a kind of car ACCEL Anti-mis-stepping system and method.
Background technology
On present automobile, for manual-gear vehicle, generally there is control clutch, brake and the acceleration respectively of three pedals; For automatic catch automobile, generally there are two pedals, lacked the pedal of a control clutch.Because acceleration and brake pedal are all at sole, just likely occur to step on (especially for new hand) by mistake, cause wanting emergency brake to accelerate on the contrary, cause traffic accident.
Denomination of invention is disclose a kind of gas based on DSP2812 controller in the Chinese patent application of " a kind of gas based on DSP2812 controller steps on determination methods by mistake " (application number is 201410245707.9, and publication date is on 06 04th, 2014) to step on determination methods by mistake.The method is detected by trailer-mounted radar always and judges the information of front end obstacle, when detecting that there is obstacle in front, and when the acceleration/accel of acceleration pedal exceedes certain value, can directly make acceleration lose efficacy and call brake system of car to come automobile brake.Above-mentioned technology needs additionally to fill onboard a DSP2812 controller and steps on gas by mistake and judge, adds manufacturing cost.This technology works in vehicle traveling process always, needs consumed energy always; And program need judge the acceleration/accel of acceleration pedal, car speed and preceding object thing information, comparatively complicated.
Summary of the invention
The present invention is for solving the problems of the technologies described above as providing a kind of low energy consumption, and structure is simple, car ACCEL Anti-mis-stepping system with low cost.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of car ACCEL Anti-mis-stepping control system, comprises acceleration pedal, brake pedal, position transduser, entire car controller, brake controller and radar; Described position transduser is arranged on acceleration pedal, and described radar is arranged on the front portion of automobile, and described entire car controller is connected with position transduser, brake controller and radar respectively, and described brake controller connects and controls brake pedal.
This real invention beneficial effect is: when being situation about excessively accelerating by position transduser detection acceleration pedal, call detections of radar vehicle front and whether occur obstacle, if have, automobile is then made to accelerate lost efficacy and carried out emergency braking by brake controller, prevent chaufeur in needs emergency brake because of anxiety etc. and error stepping on accelerator pedal, cause the generation of major traffic accidents, radar only has acceleration pedal to be when excessively accelerating, just carry out judgement to detect, the consumption of the energy reduced, and adopting device to be the original configuration of automobile, structure is simple, with low cost.
As a kind of preferred structure of the present invention, in order to improve the problem that radar may carry out judging by accident, the present invention also comprises the camera and display module that are arranged on automotive front, described entire car controller is connected with camera and display module respectively, and described display module is arranged on vehicle central control system place.So, by the display of camera and display module, can judge front truth, determine whether it is the erroneous judgement carried out after radar is blocked, if erroneous judgement, then make corresponding measure.
As a kind of preferred structure of the present invention, the problem of uncontrollable automobile steering during in order to improve emergency situations, the present invention also comprises steering wheel angle sensor and deflector, and described steering wheel angle sensor is arranged on the steering wheel, and is connected with entire car controller; Described deflector is connected with bearing circle, and for controlling turning to of wheel, described entire car controller connects and controls deflector.So, the information of wheel steering detected by steering wheel angle sensor, entire car controller according to front truth, can be analyzed and control deflector, makes automobile correctly turn to the obstacle hiding front, prevents the situation battering bearing circle in anxiety.
As a kind of preferred structure of the present invention, in order to improve the problem cannot carrying out alarm, the present invention also comprises annunciator, and described entire car controller is connected with annunciator.So, driver's acceleration pedal just can be reminded to step on by annunciator, or bearing circle is misplayed by mistake, and reminded driver to make corresponding measure in time.
As a kind of preferred structure of the present invention, the problem of preceding object thing cannot be avoided knocking in order to improve vehicle, the present invention also comprises air bag and gas generator, described gas generator and airbags connect, described air bag is arranged on the front portion of automobile, and described entire car controller connects and controls gas generator.So, can be inflated air bag by gas generator, air bag is protected automobile, reduces the loss that vehicle cannot be avoided producing when will knock preceding object thing.
For solving the problems of the technologies described above, present invention also offers car ACCEL Anti-mis-stepping control method, comprising the following steps:
Entire car controller is stored by the stroke of position transduser to acceleration pedal, and judges whether the stroke of driver's bend the throttle is greater than 95% of whole stroke;
If the stroke of driver's bend the throttle is greater than 95% of whole stroke, then entire car controller calls the detection that radar carries out vehicle front obstacle;
By detections of radar, entire car controller judges whether the distance of automobile and preceding object thing is less than default distance;
If the distance of automobile and preceding object thing is less than default distance, then entire car controller makes Acceleration Signal lose efficacy, and is braked by brake controller control brake pedal.
This real invention beneficial effect is: by 95% to driver's bend the throttle stroke, judge whether that driver is the situation of being floored by pedal one, situation of flooring just starts to call the detection that radar carries out vehicle front obstacle, if there is the appearance of obstacle in detections of radar to front preset distance, then be judged as stepping on by mistake, then make Acceleration Signal lose efficacy and carry out emergency braking, preventing unexpected appearance, detect without the need to radar always.
As a kind of preferred structure of the present invention, in order to improve the problem that radar may carry out judging by accident, calling before radar carries out the detection of vehicle front obstacle at described entire car controller, also comprising:
Entire car controller calls the camera of automotive front, the travel situations of vehicle front is presented at the display module being arranged on vehicle central control system place.
So, first by the display of camera and display module, can judge front truth, the appearance of the erroneous judgement carried out after preventing radar to be blocked.
As a kind of preferred structure of the present invention, in order to improve the problem cannot carrying out alarm, at described entire car controller, Acceleration Signal was lost efficacy, and before being braked by brake controller control brake pedal, also comprises:
Entire car controller is less than default distance by the distance of annunciator to automobile and preceding object thing and carries out alarm.
So, driver's acceleration pedal just can be reminded to step on by annunciator, or bearing circle is misplayed by mistake, and reminded driver to make corresponding measure in time.
As a kind of preferred structure of the present invention, cannot avoid knocking the problem of preceding object thing to improve vehicle, described entire car controller makes Acceleration Signal lose efficacy, and after being braked by brake controller control brake pedal, also comprises:
By detections of radar, entire car controller judges whether the distance of automobile and preceding object thing is less than the distance of 1 meter;
If the distance of automobile and preceding object thing is less than 1 meter of distance, then the air bag of vehicle control unit controls gas generator to automotive front is inflated.
So, inflated air bag by gas generator, air bag is protected automobile, reduces the loss that vehicle cannot be avoided producing when will knock preceding object thing.
Further, described default distance is 10 meters.
Accompanying drawing explanation
Fig. 1 is the structural representation of car ACCEL Anti-mis-stepping system of the present invention;
Fig. 2 is the diagram of circuit of car ACCEL Anti-mis-stepping control method of the present invention.
Label declaration:
101, acceleration pedal; 102, brake pedal; 103, position transduser;
104, entire car controller; 105, brake controller; 106, radar.
Detailed description of the invention
By describing technology contents of the present invention, structural attitude in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with embodiment.
Refer to Fig. 1, car ACCEL Anti-mis-stepping system of the present invention comprises acceleration pedal 101, brake pedal 102, position transduser 103, entire car controller 104, brake controller 105, radar 106, camera, display module, steering wheel angle sensor, deflector, annunciator, air bag and gas generator position transduser 103 are arranged on acceleration pedal 101, radar 106 and camera are arranged on the anterior crossbeam place of automobile, radar 106 is for detecting the distance of automobile and preceding object thing, camera is for taking the truth of vehicle front, entire car controller 104 respectively with position transduser 103, brake controller 105, radar 106, camera, display module, steering wheel angle sensor and annunciator are connected.Brake controller 105 connects and controls brake pedal 102.When by position transduser 103, to detect acceleration pedal 101 be situation about excessively accelerating, call radar 106 to detect vehicle front and whether occur obstacle, if have, automobile is then made to accelerate lost efficacy and carried out emergency braking by brake controller 104, prevent chaufeur in needs emergency brake because of anxiety etc. and error stepping on accelerator pedal, cause the generation of major traffic accidents, when radar 106 only has acceleration pedal 101 for excessively accelerating, just carry out judgement to detect, the consumption of the energy reduced, and adopting device to be the original configuration of automobile, structure is simple, with low cost.
Drive pedal position signal is passed to entire car controller 104 by CAN by position transduser 103, whole acceleration pedal 101 has a stroke, entire car controller 104 can prestore the data of whole stroke, 95% of acceleration pedal 101 stroke is exceeded when stepping on, entire car controller 104 will call radar 106, information interchange is carried out by CAN between entire car controller 104 and radar 106, undertaken calling radar by CAN and detect in 10 meters, front whether have obstacle, obstacle is had in 10 meters, entire car controller 104 makes Acceleration Signal lose efficacy, and call brake controller, emergency braking, when entire car controller 104 needs emergency braking, entire car controller 104 can call ABS anti-skid brake system to carry out emergency braking.Entire car controller 104 is also carry out information interchange by CAN and ABS anti-skid brake system.
Display module is arranged on vehicle central control system place.So, by the display of camera and display module, can judge front truth, determine whether it is the erroneous judgement carried out after radar is blocked, if erroneous judgement, then make corresponding measure.Steering wheel angle sensor is arranged on the steering wheel, and is connected with entire car controller; Deflector is connected with bearing circle, and for controlling turning to of wheel, entire car controller connects and controls deflector.So, the information of wheel steering detected by steering wheel angle sensor, entire car controller according to front truth, can be analyzed and control deflector, makes automobile correctly turn to the obstacle hiding front, prevents the situation battering bearing circle in anxiety.Entire car controller is connected with annunciator.So, driver's acceleration pedal just can be reminded to step on by annunciator, or bearing circle is misplayed by mistake, and reminded driver to make corresponding measure in time.Gas generator and airbags connect, and air bag is arranged on the front portion of automobile, and entire car controller connects and controls gas generator.So, can be inflated air bag by gas generator, air bag is protected automobile, reduces the loss that vehicle cannot be avoided producing when will knock preceding object thing.
Refer to Fig. 2, embodiment of the present invention additionally provides a kind of acceleration pedal Anti-mis-stepping control method, comprises the following steps:
S1, entire car controller are stored by the stroke of position transduser to acceleration pedal, and judge whether the stroke of driver's bend the throttle is greater than 95% of whole stroke;
If the stroke of S2 driver bend the throttle is greater than 95% of whole stroke, then entire car controller calls the detection that radar carries out vehicle front obstacle;
By detections of radar, S3, entire car controller judge whether the distance of automobile and preceding object thing is less than default distance;
If the distance of S4 automobile and preceding object thing is less than default distance, then entire car controller makes Acceleration Signal lose efficacy, and is braked by brake controller control brake pedal.
So, by 95% to driver's bend the throttle stroke, judge whether that driver is the situation of being floored by pedal one, situation of flooring just starts to call the detection that radar carries out vehicle front obstacle, if there is the appearance of obstacle in detections of radar to front preset distance, is then judged as stepping on by mistake, then makes Acceleration Signal lose efficacy and carry out emergency braking, prevent unexpected appearance, detect without the need to radar always.
Further, above-mentioned acceleration pedal Anti-mis-stepping control method, call before radar carries out the detection of vehicle front obstacle at described entire car controller, also comprise:
Entire car controller calls the camera of automotive front, the travel situations of vehicle front is presented at the display module being arranged on vehicle central control system place.
So, first by the display of camera and display module, can judge front truth, the appearance of the erroneous judgement carried out after preventing radar to be blocked.
Further, above-mentioned acceleration pedal Anti-mis-stepping control method, makes Acceleration Signal lose efficacy at described entire car controller, and before being braked by brake controller control brake pedal, also comprises:
Entire car controller is less than default distance by the distance of annunciator to automobile and preceding object thing and carries out alarm.
So, driver's acceleration pedal just can be reminded to step on by annunciator, or bearing circle is misplayed by mistake, and reminded driver to make corresponding measure in time.
Further, above-mentioned acceleration pedal Anti-mis-stepping control method, described entire car controller makes Acceleration Signal lose efficacy, and after being braked by brake controller control brake pedal, also comprises:
By detections of radar, entire car controller judges whether the distance of automobile and preceding object thing is less than the distance of 1 meter;
If the distance of automobile and preceding object thing is less than 1 meter of distance, then the air bag of vehicle control unit controls gas generator to automotive front is inflated.
So, inflated air bag by gas generator, air bag is protected automobile, reduces the loss that vehicle cannot be avoided producing when will knock preceding object thing.
Further, described default distance is 10 meters.According to the quality of human response's time, wheel actual travel speed and the deceleration and stopping performance of wheel own, the different distances preset can be selected, here the predeterminable range selected is 10 meters, by braking the judgement of obstacle in 10 meters, front, meets most situation.
In use procedure, general chaufeur is because all using with all strength when anxiety misses pedal, pedal one can be floored, so car ACCEL Anti-mis-stepping system and method for the present invention comes into force, drive pedal position signal is passed to entire car controller 104 by CAN by position transduser 103, whole acceleration pedal 101 has a stroke, entire car controller 104 can prestore the data of whole stroke, 95% of acceleration pedal 101 stroke is exceeded when stepping on, entire car controller 104 will call radar 106, information interchange is carried out by CAN between entire car controller 104 and radar 106, undertaken calling radar by CAN and detect in 10 meters, front whether have obstacle, obstacle is had in 10 meters, entire car controller 104 makes Acceleration Signal lose efficacy, and call brake controller, emergency braking, prevent unexpected generation, and structure of the present invention is simple, with low cost.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.