CN103192832B - Vehicle snow schema control system and corresponding control method - Google Patents
Vehicle snow schema control system and corresponding control method Download PDFInfo
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- CN103192832B CN103192832B CN201310154887.5A CN201310154887A CN103192832B CN 103192832 B CN103192832 B CN 103192832B CN 201310154887 A CN201310154887 A CN 201310154887A CN 103192832 B CN103192832 B CN 103192832B
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Abstract
The present invention relates to a kind of vehicle snow Schema control system and corresponding control method, vehicle snow schema control system includes Rotating speed measring module, detects the rotary speed information of vehicle front and rear wheel in real time；Gas pedal Measuring opening module, detects the gas pedal opening information of vehicle in real time；Main control unit, vehicle front and rear wheel speed discrepancy threshold information when storage inside has vehicle to be in snowfield operational mode, gas pedal aperture maximum, the information that its real-time reception Rotating speed measring module detects with gas pedal Measuring opening module, and after the information detected is carried out computing, operation result and the information comparison of storage inside, control electromotor and run in a corresponding manner.The vehicle snow schema control system electrical wiring of the present invention is less, and principle is simple, can control vehicle automatic switchover operational mode, control more accurate.The present invention is applicable to various automatic catch vehicle.
Description
Technical field
The present invention relates to the control system of a kind of vehicle mode, particularly relate to a kind of vehicle snow schema control system.This
Invention further relates to a kind of above-mentioned vehicle snow control system and controls the method that vehicle switches to snow field mode.
Technical background
Along with vehicle occupies the most important position in people's daily life, the safety of vehicle becomes consumer
Evaluate the direct basis of a vehicle quality.The security performance that vehicle travels on the wet and slippery ground such as sleet sky is vehicle security
A big important component part.
Existing automatic catch vehicle is mostly provided with snow field mode, when road surface occurs what accumulated snow, rainwater, ice sheet etc. easily skidded
During situation, the operational mode of vehicle can be switched over by driver by pressing the button arranged near replacing vehicle pin, order
Vehicle runs under snow field mode, and i.e. vehicle is with two gears or three dammed ups step, reduces power output, and driver gently steps on oil simultaneously
Door, prevents vehicle slip, makes vehicle safety, slowly travels.
Owing to the above-mentioned switching to vehicle operating modes is by manual switching after driver's Urine scent, therefore deposit
In the biggest anthropic factor, there is deviation to the judgement of road conditions in people, is likely to result in driver and forgets that corresponding road conditions are to vehicle row
The pattern sailed switches over, and causes vehicle to be not on optimal operating condition, vehicle causes damage, time serious, and may be right
Occupant damages.
Additionally, the switching of existing vehicle operating modes is the form by settings button, vehicle operating modes is cut
Change, and this mode needs to add button at selector or instrument board etc., which adds electric wiring, increases machine
Tool fault and the incidence rate of electric fault, operate increasingly complex simultaneously, there is the situation of operating trouble, such as: work as button
Malfunctioning, it is impossible to enter snow field mode, or enter after snow field mode and cannot switch to normal mode, will result in acceleration unable or
The situation that person climbs unable occurs, and increases the oil consumption of electromotor simultaneously.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of vehicle snow schema control system, it is possible to make vehicle according to
Different road conditions automatic switchover operational mode, it is ensured that vehicle is in optimal running status, ensures the operation safety of vehicle simultaneously；
Another object of the present invention, there is provided a kind of above-mentioned control system control vehicle and switches to snow field mode
Method.
For reaching above-mentioned purpose, the technical solution adopted in the present invention is:
A kind of vehicle snow schema control system, including:
Rotating speed measring module, for the rotary speed information of detection vehicle front and rear wheel in real time, and passes in real time by the information detected
Pass main control unit；
Gas pedal Measuring opening module, in real time detecting the gas pedal opening information of vehicle, and will detect
Information passes to main control unit in real time；
Main control unit, vehicle front and rear wheel speed discrepancy value information when storage inside has vehicle to be in snowfield operational mode, and
Gas pedal aperture maximum, the information that its real-time reception Rotating speed measring module detects with gas pedal Measuring opening module,
And after the information detected is carried out related operation, result and the information phase comparison of its storage inside that will obtain, control vehicle
Electromotor runs in a corresponding manner.
As limitation of the invention:
Described main control unit is snow field mode control unit, and it is connected alternately with vehicle ECU information；
Described Rotating speed measring module is vehicle speed sensor, and the vehicle front and rear wheel rotary speed information detected is transmitted by real time
To coupled vehicle ECU；
Described gas pedal Measuring opening module is accelerator pedal position sensor, its vehicle accelerator pedal that will detect
Positional information is real-time transmitted to coupled snow field mode control unit.
As limitation of the invention further: be provided with abs braking anti-lock between described vehicle speed sensor and vehicle ECU
System；Carry out information by CAN between vehicle ECU with vehicle transmission control unit to be connected alternately.
Further restriction as to the present invention: the signal output part of described vehicle speed sensor passes through CAN and ABS
Anti-blocking brake system is connected.
Present invention also offers a kind of vehicle that controls and enter the method that snow field mode runs, comprise the following steps:
One, judge that the operation road conditions residing for vehicle are entrance step 2 after snowfield road conditions；
Two, control vehicle automatic switchover snowfield operational mode to run.
Restriction as said method: described step one comprises the following steps:
(1) determine that the difference of the rotating speed of vehicle front and rear wheel is more than or equal to the vehicle of the interior storage of main control unit at snowfield mould
The speed discrepancy threshold value of vehicle front and rear wheel when formula is run；
(2) maximum of the gas pedal aperture that gas pedal aperture is the interior storage of main control unit is determined.
As said method being further defined that described step () comprises the following steps:
(11) rotating speed of vehicle front and rear wheel is detected；
(12) main control unit calculates the rotating speed difference of now vehicle front and rear wheel；
(13) the rotating speed difference of calculated vehicle front and rear wheel and the vehicle of its storage inside are in snow by main control unit
During ground operational mode, the rotating speed difference of vehicle front and back wheel is compared, and exports comparison result.
Further restriction as to said method: described step (11) detects vehicle in real time by Rotating speed measring module
The rotating speed of front and rear wheel, and the rotary speed information detected is real-time transmitted to main control unit.
Another kind of restriction as to aforesaid way: described step (two) comprise the following steps:
(21) detection vehicle accelerator pedal opening information；
(22) vehicle accelerator pedal of the gas pedal opening information of now vehicle with its storage inside is opened by main control unit
The maximum of degree is compared, and exports comparison result.
Real-time by gas pedal Measuring opening module as aforesaid way being further defined that in described step (21)
The opening information of detection vehicle accelerator pedal, and the information detected is real-time transmitted to main control unit.
Owing to using above technical scheme, the present invention compared with prior art can reach following technique effect:
(1) the vehicle snow schema control system of the present invention is not provided with button, makes electrical wiring simpler, simultaneously
Make vehicle ECU and vehicle transmit control unit communicated by CAN, utilize simple communication just can make vehicle transmission
Control unit shares the information that vehicle ECU is gathered, it is not necessary to again the signal output part of sensor is passed through connection to snowfield
In mode controlling unit, make wiring simpler, convenient；
(2) main control unit of vehicle snow schema control system of the present invention passes through the vehicle front and rear wheel rotating speed detected, with
And to vehicle accelerator pedal opening information, the speed discrepancy of now vehicle front and rear wheel can be calculated, and judge now vehicle
The rotating speed difference of vehicle front and rear wheel during the snowfield operational mode that the rotating speed difference of front and rear wheel stores in whether reaching main control unit,
May determine that whether the gas pedal aperture of now vehicle reaches in main control unit the gas pedal aperture of storage the most simultaneously
Big value, as long as the rotating speed difference of vehicle front and rear wheel reaches vehicle front and rear wheel during the snowfield operational mode of main control unit interior storage
Speed discrepancy threshold value, when gas pedal aperture reaches the maximum of the gas pedal aperture of storage in main control unit simultaneously, master control list
Unit will control vehicle and automatically switch to snowfield operational mode, it is not necessary to driver's active operation, and order controls the most accurate.
(3) present invention controls vehicle and enters the method that snow field mode runs and rely on the vehicle snow Schema control system of the present invention
System realizes, and has the beneficial effect described in front two equally
In sum, the vehicle snow schema control system electrical wiring of the present invention is less, and principle is simple, can control simultaneously
Vehicle processed is starting or automatic switchover operational mode in running, controls more accurate.
The vehicle snow schema control system of the present invention is applicable to various automatic catch vehicle.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment of the present invention；
Fig. 2 is the embodiment of the present invention flow chart to vehicle operating modes control method.
In figure: 1 Rotating speed measring module, 2 gas pedal Measuring opening modules, 3 main control units, 4 electromotors.
Detailed description of the invention
Embodiment one vehicle snow schema control system and corresponding control method
The structure of the present embodiment is as it is shown in figure 1, include Rotating speed measring module 1, gas pedal Measuring opening module 2 and master control
Unit.Wherein:
Rotating speed measring module 1, for the rotary speed information of detection vehicle front and rear wheel in real time, for simple in construction, the present embodiment
Directly use the vehicle speed sensor used in existing vehicle, its front wheel rotation speed detecting vehicle in real time and rear wheel rotation speed.
Gas pedal Measuring opening module 2, for the gas pedal opening information of detection vehicle in real time, for the letter of structure
Single, the present embodiment directly uses the accelerator pedal position sensor used in prior art vehicle, and detects gas pedal in real time
Opening information.
Main control unit 3, vehicle front and rear wheel speed discrepancy value information when storage inside has vehicle to be in snowfield operational mode, with
And gas pedal aperture maximum, the letter that its real-time reception Rotating speed measring module detects with gas pedal Measuring opening module
Breath, and after the information detected is carried out related operation, the information phase comparison of the result that will obtain and its storage inside, control car
Electromotor 4 run in a corresponding manner.
This example employing snow field mode control unit is as main control unit 3, owing to some information of vehicle are at existing car
Being transferred directly to vehicle ECU in ECU control system, therefore to wiring can be less, the present embodiment is directly by vehicle ECU
Transmitting control unit with vehicle to be communicated by CAN, such vehicle transmission main control unit just can directly be shared
The rotary speed information of the vehicle front and rear wheel that the information received by vehicle ECU, such as vehicle speed sensor detect is through rigid line
First passing to abs braking anti-lock braking system, then this signal is passed through CAN and ECU and snow by abs braking anti-lock braking system
Ground mode control unit shares the rotary speed information of vehicle front and rear wheel.And the gas pedal that accelerator pedal position sensor detects
Positional information shares to snow field mode control unit also by CAN after being transmitted directly to ECU.
Above-mentioned control system controls vehicle and enters the control method that snow field mode runs, as in figure 2 it is shown, first system starts
Run, subsequently into following steps:
(1) judge that the operation road conditions residing for vehicle are entrance step (2) after snowfield road conditions, wherein judge that road conditions are snowfield road
Condition mainly comprises the steps that
(11) determine that the difference of the rotating speed of vehicle front and rear wheel is more than or equal to the vehicle of the interior storage of main control unit at snowfield mould
The difference of vehicle front and rear wheel when formula is run；
(12) maximum of the gas pedal aperture that gas pedal aperture is the interior storage of main control unit is determined.
When only above-mentioned two condition all meets, main control unit 3 just judges that the road conditions that now vehicle runs are snowfield road
Condition, wherein above-mentioned steps (11) is further comprising the steps of:
(111) rotating speed of vehicle front and rear wheel is detected: Rotating speed measring module detects the rotating speed of vehicle front and rear wheel in real time, and will
The rotary speed information detected is real-time transmitted to main control unit；
(112) main control unit calculates the rotating speed difference of now vehicle front and rear wheel；
(113) the rotating speed difference of calculated vehicle front and rear wheel is in by main control unit with the vehicle of its storage inside
During snowfield operational mode, the rotating speed difference of vehicle front and back wheel is compared, and exports comparison result.
Above-mentioned steps (12) is further comprising the steps of:
(121) detection vehicle accelerator pedal opening information: gas pedal Measuring opening module detects vehicle accelerator in real time and steps on
The opening information of plate, and the information detected is real-time transmitted to ECU；
(122) main control unit receives the gas pedal opening information of the vehicle that ECU shares and the vehicle of its storage inside
The maximum of gas pedal aperture is compared, and exports comparison result.
(2) control vehicle automatic switchover snowfield operational mode to run.
Vehicle owing to only having the rotating speed difference of vehicle front and rear wheel to store in reaching main control unit 3 in the present embodiment is forward and backward
The rotating speed difference of wheel, when gas pedal aperture reaches maximum simultaneously, main control unit 3 just controls electromotor 4 and transports with snow field mode
OK, therefore, either just start to start or during vehicle runs, as long as meeting above-mentioned two bar at vehicle
Part, main control unit 3 just can be made control, vehicle automatically switches to snowfield operational mode, it is not necessary to the artificial intention of driver
Operation, order control the most accurate, it is also possible to fully ensure that the safety of driving.
Claims (9)
1. control vehicle and enter the control method that snow field mode runs, realized by vehicle snow schema control system,
It is characterized in that it comprises the following steps:
(1) judging that the operation road conditions residing for vehicle are entrance step (2) after snowfield road conditions, this step includes again following step in (1)
Rapid: (11) determine that the difference of the rotating speed of vehicle front and rear wheel is transported at snow field mode more than or equal to the vehicle of storage in main control unit
Vehicle front and rear wheel speed discrepancy threshold value during row；
(12) maximum of the gas pedal aperture that gas pedal aperture is the interior storage of main control unit is determined；
(2) control vehicle automatic switchover snowfield operational mode to run.
Control vehicle the most according to claim 1 enters the control method that snow field mode runs, it is characterised in that described
Step (11) comprises the following steps:
(111) rotating speed of vehicle front and rear wheel is detected；
(112) main control unit calculates the rotating speed difference of now vehicle front and rear wheel；
(113) the rotating speed difference of calculated vehicle front and rear wheel and the vehicle of its storage inside are in snowfield by main control unit
During operational mode, the rotating speed difference of vehicle front and back wheel is compared, and exports comparison result.
Control vehicle the most according to claim 2 enters the control method that snow field mode runs, it is characterised in that: described step
Suddenly (111) detect the rotating speed of vehicle front and rear wheel in real time by Rotating speed measring module, and are transmitted in real time by the rotary speed information detected
To main control unit.
4. entering, according to the vehicle that controls described in any one in claim 13, the control method that snow field mode runs, it is special
Levy and be that described step (12) comprises the following steps:
(121) detection vehicle accelerator pedal opening information；
(122) main control unit is by the vehicle accelerator pedal aperture of the gas pedal opening information of now vehicle and its storage inside
Maximum is compared, and exports comparison result.
Control vehicle the most according to claim 4 enters the control method that snow field mode runs, it is characterised in that: described step
Suddenly (121) detect the opening information of vehicle accelerator pedal in real time by gas pedal Measuring opening module, and will detect
Information is real-time transmitted to main control unit.
Control vehicle the most according to claim 5 enters the control method that snow field mode runs, it is characterised in that: described car
Snow field mode control system includes Rotating speed measring module, for detecting the rotary speed information of vehicle front and rear wheel in real time, and will detection
To information pass to main control unit in real time；
Gas pedal Measuring opening module, for the gas pedal opening information of detection vehicle in real time, and the information that will detect
Pass to main control unit in real time；
Main control unit, vehicle front and rear wheel speed discrepancy threshold information when storage inside has vehicle to be in snowfield operational mode, and oil
Door pedal aperture maximum, the information that its real-time reception Rotating speed measring module detects with gas pedal Measuring opening module, and
After the information detected is carried out related operation, by the information phase comparison of operation result with its storage inside, control vehicle startup
Machine runs in a corresponding manner.
Control vehicle the most according to claim 6 enters the control method that snow field mode runs, it is characterised in that:
Described main control unit is snow field mode control unit, and it is connected alternately with vehicle ECU information；
Described Rotating speed measring module is vehicle speed sensor, its vehicle front and rear wheel rotary speed information detected is real-time transmitted to
Its vehicle ECU being connected；
Described gas pedal Measuring opening module is accelerator pedal position sensor, its vehicle accelerator pedal position that will detect
Information is real-time transmitted to coupled snow field mode control unit.
Control vehicle the most according to claim 7 enters the control method that snow field mode runs, it is characterised in that: described car
It is provided with abs braking anti-lock braking system between speed sensor and vehicle ECU；Vehicle ECU and vehicle transmit and pass through between control unit
CAN carries out information and connects alternately.
Control vehicle the most according to claim 8 enters the control method that snow field mode runs, it is characterised in that: described car
The signal output part of speed sensor is connected with abs braking anti-lock braking system by CAN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154887.5A CN103192832B (en) | 2013-04-28 | 2013-04-28 | Vehicle snow schema control system and corresponding control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154887.5A CN103192832B (en) | 2013-04-28 | 2013-04-28 | Vehicle snow schema control system and corresponding control method |
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| CN103192832A CN103192832A (en) | 2013-07-10 |
| CN103192832B true CN103192832B (en) | 2016-10-05 |
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| CN201310154887.5A Active CN103192832B (en) | 2013-04-28 | 2013-04-28 | Vehicle snow schema control system and corresponding control method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851179B (en) * | 2014-02-27 | 2016-08-17 | 长城汽车股份有限公司 | Vehicle and control method thereof and control device |
| CN105626849A (en) * | 2016-03-21 | 2016-06-01 | 重庆长安汽车股份有限公司 | Winter mode control method of automatic gearbox |
| CN108944931B (en) * | 2017-05-25 | 2020-06-12 | 长城汽车股份有限公司 | Hill start assisting method and device in snowfield mode |
| CN109080623B (en) * | 2017-06-13 | 2020-09-01 | 长城汽车股份有限公司 | Snow running control system of hybrid electric vehicle |
| CN107234984B (en) * | 2017-06-14 | 2023-12-19 | 江苏林海动力机械集团有限公司 | Four-wheel drive automatic switching system of electric vehicle |
| CN109263643A (en) * | 2018-08-17 | 2019-01-25 | 上海汽车集团股份有限公司 | Vehicle snow orographic model automatic identifying method and device |
| CN110789527A (en) * | 2019-01-29 | 2020-02-14 | 长城汽车股份有限公司 | Vehicle all-terrain automatic control method and device |
| CN110103985B (en) * | 2019-04-18 | 2021-01-19 | 浙江吉利控股集团有限公司 | Vehicle control method and device |
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| US5427441A (en) * | 1992-09-07 | 1995-06-27 | Unisia Jecs Corporation | Brake control system with wheel antilock function |
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| CN103192832A (en) | 2013-07-10 |
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