CN109515183A - A kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430 - Google Patents
A kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430 Download PDFInfo
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- CN109515183A CN109515183A CN201811315657.1A CN201811315657A CN109515183A CN 109515183 A CN109515183 A CN 109515183A CN 201811315657 A CN201811315657 A CN 201811315657A CN 109515183 A CN109515183 A CN 109515183A
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- msp430
- sensor
- throttle
- gas pedal
- control module
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
- B60K28/06—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
- B60K28/06—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
- B60K28/066—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver actuating a signalling device
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses a kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430, including information acquisition module, main control module and execution module, the input terminal of the main control module is connected with the output end of information acquisition module, and the output end of main control module is connected with the input terminal of execution module；Present system hardware component is fewer, and cost is relatively low for various kinds of sensors, more can accurately judge, provides an effectively method for China's traffic safety quality, reduces accident probability, improve the safety of car steering, there is certain realistic meaning.
Description
Technical field
The present invention relates to a kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430, belong to automobile
Equipment technical field.
Background technique
With socio-economic development, living standards of the people are increased accordingly, and automobile has become most important in today's society
One of vehicles.With the increase of automobile quantity, traffic accident is consequently increased.According to statistics, because driver fault misstepping on accelerator is made
At accident account for the 13% of traffic accident ratio, in such traffic accident, driver faces emergency situations emergency brake
When, because of spiritual high-pressure, it is flurried among throttle is stepped on as brake pedal, cause vehicle raise speed suddenly cause it is more serious
Traffic accident, therefore, the automobile intelligent accelerator anti-false step system of the author's design are just particularly important.
Traditional mechanical accelerator anti-false step system is practical in market dispensing, relatively mature, but also has it not
Evitable disadvantage, such as overall construction are more complicated, need ontology, fixed block, brake briquetting, bracket, annular knurl last item, tight
It is supported Gu band, adjustable gripping block and slewing equipment bracket, briquetting etc. are external, component is various, undoubtedly makes to a certain extent
System is increasingly complex, increases design cost, and it is larger to repair difficulty, increases maintenance cost, and traditional machinery
Formula system is normally only used for certain serial vehicle, and to design exclusively for its stroke, portable not strong, is unfavorable for popularity.
Summary of the invention
The main purpose of the present invention is to provide a kind of intelligent automobile accelerator anti-false step system and its control based on MSP430
Method processed, system hardware components are fewer, and cost is relatively low for various kinds of sensors, more can accurately judge, are China's traffic safety
Quality provides an effectively method, reduces accident probability, improves the safety of car steering, there is certain reality
Meaning can effectively solve the problems in background technique.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of intelligent automobile accelerator anti-false step system based on MSP430, including information acquisition module, main control module and hold
Row module, the input terminal of the main control module are connected with the output end of information acquisition module, the output end of main control module and execution
The input terminal of module is connected.
Further, the information acquisition module includes throttle position sensor, range radar, gas pedal pressure biography
Sensor and gas pedal acceleration transducer, the range radar are ESR radar, and the gas pedal pressure sensor is high-precision
Resistance-type diaphragm pressure sensor is spent, gas pedal pressure sensor is installed at pedal, the gas pedal acceleration sensing
Device is MPU-6050 sensor, and gas pedal acceleration transducer is installed on the bottom of pedal.
Further, the threshold value of the range radar is less than 6m, and the threshold value of the gas pedal pressure sensor is big
In 295N, the threshold value of the gas pedal acceleration transducer is greater than 40m/s2。
Further, the throttle sensor is connected by throttle sensor peripheral circuit with main control module.
Further, the MPU-6050 sensor is connected by MPU-6050 sensor periphery circuit with main control module.
Further, the main control module is made of MSP430 series monolithic chip and MSP430 single chip circuit.
Further, the execution module includes the Wo 2009051153 for controlling engine idling, EBA system and alarm system
System.
Further, the EBA system includes sensor, actuator and controller, and the actuator includes electronic vacuum
Booster, the Wo 2009051153 are connected with the p3.0 pin of MSP430 series monolithic chip, the EBA system with
The p3.4 pin of MSP430 series monolithic chip is connected, and the p3.1 of the alarm system and MSP430 series monolithic chip is managed
Foot is connected.
Further, the throttle position sensor is connected with the p6.7 pin of MSP430 series monolithic chip, institute
It states range radar to be connected with the p6.3 pin of MSP430 series monolithic chip, the gas pedal pressure sensor and MSP430
The P6.0 pin of series monolithic chip is connected, the p3.0 of the MPU-6050 sensor and MSP430 series monolithic chip and
P3.2 pin is connected.
The present invention also provides a kind of control methods of Anti-false stepping system for automobile throttle, including following method:
(1) the throttle opening letter that Anti-false stepping system for automobile throttle signal acquisition module passes through acquisition throttle sensor
Breath, the pressure information of throttle pressure sensor, gas pedal acceleration information and radar surveying obstacle distance information parameter, and
Whether accidentally stepped on the basis of this by control system discriminatory analysis throttle；
(2) as judged accidentally to step on, main control module immediately drives execution module movement, and control air throttle does not generate aperture, so that
Engine idling, meanwhile, control module drives the EBA system of automobile, car assisted braking, while vehicle alarming system to start；
(3) condition of accidentally stepping on is not met such as, then returns to original state, is kept and is acquired running information, normal vehicle operation.
When vehicle driving, when driver's accelerator pedal, signal acquisition module acquires the section of throttle sensor respectively
Valve opening information, the pressure information of throttle pressure sensor, gas pedal acceleration information and radar surveying obstacle distance
Information after collecting these information, compares analysis with its threshold value in the controls, accidentally steps on when several parameters meet throttle simultaneously
When information, system determines that driver's throttle is accidentally stepped on, and main control module immediately drives execution module movement, and control air throttle does not generate out
Degree, so that engine idling, meanwhile, MSP430 single-chip microcontroller starts Vehicle Electronic Control brake assist system (EBA system), simultaneously
The starting of single-chip microcontroller vehicle alarming system.Present system hardware component is fewer, and cost is relatively low for various kinds of sensors, can be more smart
Really judgement, provides an effectively method for China's traffic safety quality, reduces accident probability, improve car steering
Safety, have certain realistic meaning.
Detailed description of the invention
Fig. 1 is system module figure of the invention；
Fig. 2 is system flow chart of the invention；
Fig. 3 is the structural schematic diagram of throttle position sensor of the invention；
Fig. 4 is the circuit diagram of throttle position sensor of the present invention；
Fig. 5 is the circuit diagram of gas pedal acceleration transducer MPU-6050 of the present invention；
Fig. 6 is the circuit diagram of MSP430 single-chip microcontroller of the present invention.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
As shown in Figures 1 to 6, the intelligent automobile accelerator anti-false step system based on MSP430 that the present embodiment provides a kind of, including
Information acquisition module, main control module and execution module, the output end phase of the input terminal and information acquisition module of the main control module
Even, the output end of main control module is connected with the input terminal of execution module.
Further, the information acquisition module includes throttle position sensor, range radar, gas pedal pressure biography
Sensor and gas pedal acceleration transducer, the range radar are ESR radar, and the gas pedal pressure sensor is high-precision
Resistance-type diaphragm pressure sensor is spent, gas pedal pressure sensor is installed at pedal, the gas pedal acceleration sensing
Device is MPU-6050 sensor, and gas pedal acceleration transducer is installed on the bottom of pedal.
Anti-false stepping system for automobile throttle signal acquisition module passes through the throttle opening information of acquisition throttle sensor, oil
Pressure information, gas pedal acceleration information and the radar surveying obstacle distance information parameter of door pressure sensor, and this base
Whether accidentally to be stepped on plinth by control system discriminatory analysis throttle, such as judgement is accidentally stepped on, and main control module immediately drives execution module movement,
Control air throttle does not generate aperture, so that engine idling, meanwhile, control module drives the EBA system of automobile, car assisted system
It is dynamic, while vehicle alarming system starts, and does not meet condition of accidentally stepping on such as, then returns to original state, keeps and acquire running information,
Normal vehicle operation.
Further, the threshold value of the range radar is less than 6m, and the threshold value of the gas pedal pressure sensor is big
In 295N, the threshold value of the gas pedal acceleration transducer is greater than 40m/s2。
Further, the throttle sensor is connected by throttle sensor peripheral circuit with main control module.
Further, the MPU-6050 sensor is connected by MPU-6050 sensor periphery circuit with main control module.
Further, the main control module is made of MSP430 series monolithic chip and MSP430 single chip circuit.
Further, the execution module includes the Wo 2009051153 for controlling engine idling, EBA system and alarm system
System.
After system determines mis-accelerator pressing, main control module controls closed throttle, and air will bypass air throttle, from the side
Channel enters inlet manifold, allows automobile engine to be in idling mode, assists in automobile brake in this way.
Further, the EBA system includes sensor, actuator and controller, and the actuator includes electronic vacuum
Booster, the Wo 2009051153 are connected with the p3.0 pin of MSP430 series monolithic chip, the EBA system with
The p3.4 pin of MSP430 series monolithic chip is connected, and the p3.1 of the alarm system and MSP430 series monolithic chip is managed
Foot is connected.
Further, the throttle position sensor is connected with the p6.7 pin of MSP430 series monolithic chip, institute
It states range radar to be connected with the p6.3 pin of MSP430 series monolithic chip, the gas pedal pressure sensor and MSP430
The P6.0 pin of series monolithic chip is connected, the p3.0 of the MPU-6050 sensor and MSP430 series monolithic chip and
P3.2 pin is connected.
The present invention also provides a kind of control methods of Anti-false stepping system for automobile throttle, including following method:
(1) the throttle opening letter that Anti-false stepping system for automobile throttle signal acquisition module passes through acquisition throttle sensor
Breath, the pressure information of throttle pressure sensor, gas pedal acceleration information and radar surveying obstacle distance information parameter, and
Whether accidentally stepped on the basis of this by control system discriminatory analysis throttle；
(2) as judged accidentally to step on, main control module immediately drives execution module movement, and control air throttle does not generate aperture, so that
Engine idling, meanwhile, control module drives the EBA system of automobile, car assisted braking, while vehicle alarming system to start；
(3) condition of accidentally stepping on is not met such as, then returns to original state, is kept and is acquired running information, normal vehicle operation.
1 pedal pressure testing data of table
As shown in table 1, when mis-accelerator pressing and emergency are trampled or distinguishing, so working as driver fault misstepping on accelerator
When, (the f when pressure that pedal pressing force sensor tests out is greater than critical threshold value0=295 or more), so that it may judge that driver answers
This is mis-accelerator pressing.
2 pedal acceleration force test data of table
As shown in table 2, when three kinds of situations are trampled, acceleration has very big difference, under normal circumstances the acceleration of pedal
It should be less than 10m/s2 or so, when emergency is braked, acceleration adds probably in 30-40m/s2 or so, and when mis-accelerator pressing
Speed is excessive, and more than 120m/s2, in summary three kinds of situation data analyses, for the sake of security, finally accelerate gas pedal
The threshold value of degree takes in a0=40m/s2It is above proper, when gas pedal acceleration is more than threshold value a0When, starting main control module drives
Dynamic execution module movement, takes certain measure.
The working principle of EBA system are as follows: install a pressure sensor on brake main pump, obtained by pressure sensor
Signal, identification are emergency braking behaviors, and when emergency braking, main control module MSP430 single-chip microcontroller starts inside electronic vacuum booster
Electromagnetic mechanism, accelerate for brake pressure to be promoted to the maximal servo point of booster, the essence of EBA system is to realize the line of vehicle
Braking function is controlled, vehicle also may be implemented in the range radar in accelerator anti-false step system in EBA system cooperation information acquisition module
Self-adaption cruise system function, vehicle active collision avoidance function.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of intelligent automobile accelerator anti-false step system based on MSP430, it is characterised in that: including information acquisition module, master control
Module and execution module, the input terminal of the main control module are connected with the output end of information acquisition module, the output of main control module
End is connected with the input terminal of execution module.
2. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 1, it is characterised in that: institute
Stating information acquisition module includes that throttle position sensor, range radar, gas pedal pressure sensor and gas pedal accelerate
Sensor is spent, the range radar is ESR radar, and the gas pedal pressure sensor is high precision electro resistive diaphragm pressure biography
Sensor, gas pedal pressure sensor are installed at pedal, and the gas pedal acceleration transducer is MPU-6050 sensor,
Gas pedal acceleration transducer is installed on the bottom of pedal.
3. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 2, it is characterised in that: institute
The threshold value for stating range radar is less than 6m, and the threshold value of the gas pedal pressure sensor is greater than 295N, the gas pedal
The threshold value of acceleration transducer is greater than 40m/s2。
4. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 2, it is characterised in that: institute
Throttle sensor is stated to be connected by throttle sensor peripheral circuit with main control module.
5. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 2, it is characterised in that: institute
MPU-6050 sensor is stated to be connected by MPU-6050 sensor periphery circuit with main control module.
6. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 1, it is characterised in that: institute
Main control module is stated to be made of MSP430 series monolithic chip and MSP430 single chip circuit.
7. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 1, it is characterised in that: institute
Stating execution module includes controlling Wo 2009051153, EBA system and the alarm system of engine idling.
8. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 7, it is characterised in that: institute
Stating EBA system includes sensor, actuator and controller, and the actuator includes electronic vacuum booster, the idle speed control
System is connected with the p3.0 pin of MSP430 series monolithic chip, the EBA system and MSP430 series monolithic chip
P3.4 pin is connected, and the alarm system is connected with the p3.1 pin of MSP430 series monolithic chip.
9. a kind of intelligent automobile accelerator anti-false step system based on MSP430 according to claim 2, it is characterised in that: institute
It states throttle position sensor to be connected with the p6.7 pin of MSP430 series monolithic chip, the range radar and MSP430 system
The p6.3 pin of column singlechip chip is connected, the P6.0 of the gas pedal pressure sensor and MSP430 series monolithic chip
Pin is connected, and the MPU-6050 sensor is connected with p3.0 the and p3.2 pin of MSP430 series monolithic chip.
10. a kind of control method of Anti-false stepping system for automobile throttle described in claim 1~9, it is characterised in that: including as follows
Method:
(1) Anti-false stepping system for automobile throttle signal acquisition module passes through the throttle opening information of acquisition throttle sensor, oil
Pressure information, gas pedal acceleration information and the radar surveying obstacle distance information parameter of door pressure sensor, and this base
Whether accidentally stepped on plinth by control system discriminatory analysis throttle；
(2) as judged accidentally to step on, main control module immediately drives execution module movement, and control air throttle does not generate aperture, so that starting
Machine idling, meanwhile, control module drives the EBA system of automobile, car assisted braking, while vehicle alarming system to start；
(3) condition of accidentally stepping on is not met such as, then returns to original state, is kept and is acquired running information, normal vehicle operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315657.1A CN109515183A (en) | 2018-11-06 | 2018-11-06 | A kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315657.1A CN109515183A (en) | 2018-11-06 | 2018-11-06 | A kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430 |
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| CN109515183A true CN109515183A (en) | 2019-03-26 |
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| CN201811315657.1A Pending CN109515183A (en) | 2018-11-06 | 2018-11-06 | A kind of intelligent automobile accelerator anti-false step system and its control method based on MSP430 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254225A (en) * | 2019-05-31 | 2019-09-20 | 江西科技学院 | A kind of accelerator stepping misoperation preventing method, system, readable storage medium storing program for executing and electronic equipment |
| CN111469822A (en) * | 2020-04-27 | 2020-07-31 | 吉林工程技术师范学院 | Intelligent accelerator mistaken-stepping-prevention automatic braking system |
| CN112026516A (en) * | 2020-08-26 | 2020-12-04 | 长安大学 | Method for judging misoperation of accelerator pedal and mistaken stepping prevention system |
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