CN105082918A - AHC (Active Height Control) system and vehicle - Google Patents
AHC (Active Height Control) system and vehicle Download PDFInfo
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- CN105082918A CN105082918A CN201410666974.3A CN201410666974A CN105082918A CN 105082918 A CN105082918 A CN 105082918A CN 201410666974 A CN201410666974 A CN 201410666974A CN 105082918 A CN105082918 A CN 105082918A
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Abstract
The invention provides an AHC (Active Height Control) system and vehicle. The AHC system comprises a pressure sensor, a height sensor, a vehicle door state detector, a mode selector, a single chip microcomputer, an air spring, an air storage tank, an air compressor, an air release valve, a display screen and an electromagnetic valve, wherein the pressure sensor, the height sensor, the vehicle door state detector, the mode selector, the air compressor, the air release valve, the display screen and the electromagnetic valve are respectively in communication connection with the single chip microcomputer. According to the AHC system and vehicle provided by the invention, a pump machine of the air compressor, the air release valve and the electromagnetic valve are controlled through receiving signals sent by each sensor of a vehicle body, thereby adjusting the air pressure in the air spring so as to achieve the purpose of keeping the height of the vehicle body unchanged; and when the load of the vehicle is increased or reduced, the system can inflate or deflate the air spring so as to ensure that the height of the vehicle body is in an optimum position all the time, thereby improving the smoothness of the vehicle.
Description
Technical field
The present invention relates to field of vehicle control, be specifically related to a kind of AHC height control system and vehicle.
Background technology
The still Leaf Spring Suspension that current most domestic automotive suspension adopts.It is large that Leaf Spring Suspension has own wt, increases the feature of complete vehicle quality, when running car run quite road surface time, rigidity and the height of Leaf Spring Suspension can not adjust, traveling comfort and handling bad, or when carload changes, the height of vehicle body automatically can not be adjusted.
Along with integrated, intelligentized fast development, traditional suspension technology can not meet the demand that Modern Vehicle Body controls far away, current suspension system is considered can at various road traveling, therefore height can not be too low, overhead distance is relatively fixing, time when running at high speed owing to comparing that change is less to be caused running at high speed during chassis height peace, center is higher, and traveling comfort is poor, and may cause danger.
Summary of the invention
The object of the invention is to, for the deficiencies in the prior art, provide a kind of AHC height control system (i.e. active suspension height control system) and vehicle, be in optimum position to guarantee that bodywork height is moderate, and improve the ride comfort of vehicle.
For achieving the above object, the present invention is by the following technical solutions:
A kind of AHC height control system, is installed on vehicle, comprises: pressure sensor, height sensor, vehicle door status detector, mode selector, micro controller system, air bellow, storage tank, air compressor, blow off valve, read-out and electromagnetic valve; Wherein, pressure sensor, height sensor, vehicle door status detector, mode selector, air compressor, blow off valve, read-out and electromagnetic valve are connected with single chip communication respectively; Described air bellow is connected with storage tank by an airline, and described electromagnetic valve is arranged on airline, and described storage tank is connected with air compressor, and described blow off valve is connected on storage tank.
Preferably, described pressure sensor is installed in storage tank;
On the propons that described height sensor is installed on vehicle or back axle;
Described vehicle door status detector is installed on car door;
Described read-out is installed on vehicular drive indoor.
Preferably, described height sensor comprises back axle height sensor and propons height sensor, and described back axle height sensor is installed on the back axle of vehicle, and described propons height sensor is installed on the propons of vehicle.
Preferably, described air bellow has 4 to be installed on vehicle propons both sides and rear front both sides respectively.
Preferably, the speed sensor that described micro controller system connects also is comprised.
A kind of vehicle, described vehicle is provided with above-described AHC height control system.
A kind of AHC height control system provided by the invention and vehicle, the signal sent by receiving vehicle body each sensor controls the pump machine of air compressor, blow off valve and electromagnetic valve, thus the air pressure size in adjustment air bellow, reach and maintain highly constant object of giving one's life, when vehicle load increases or reduce, this system to air bellow inflation or can be abandoned, and to guarantee that bodywork height is in optimum position all the time, improves the ride comfort of vehicle.
Accompanying drawing explanation
The structural representation of a kind of AHC height control system that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, technical scheme of the present invention is described in detail.
As shown in Figure 1, the structural representation of a kind of AHC height control system 10 provided for the embodiment of the present invention.
In the present embodiment, AHC height control system 10 comprises pressure sensor 101, height sensor 102, vehicle door status detector 103, mode selector 104, micro controller system 105, air bellow (not shown), storage tank (not shown), air compressor 106, blow off valve 107, read-out 108 and electromagnetic valve 109; Wherein, pressure sensor 101, height sensor 102, vehicle door status detector 103, mode selector 104, air compressor 106, blow off valve 107, read-out 108 and electromagnetic valve 109 communicate to connect with micro controller system 105 respectively.In the present embodiment, micro controller system 105 has can be electronic control unit (ElectronicConteolUnit, ECU).
Described air bellow has 4 to be installed on vehicle propons both sides and rear front both sides respectively, i.e. the corresponding wheel of each air bellow.Each air bellow is connected with storage tank by airline, and described electromagnetic valve 109 is arranged on airline, and described storage tank is connected with air compressor 106, and described blow off valve 107 connects on storage tank.
Described air compressor 106 and blow off valve 107 are respectively used to receive the concerned control command of micro controller system 105, to think in storage tank inflation or by gas leakage in storage tank, to control the air pressure of storage tank; Described electromagnetic valve 109 is for opening or closing according to the concerned control command of micro controller system 105, make air flow to the low side of air pressure by the side that air pressure is high between storage tank and air bellow, thus the air pressure size in adjustment air bellow is to adjust the bodywork height of vehicle.
Described pressure sensor 101 is installed in storage tank, for the pressure signal in Real-time Collection storage tank, described pressure signal is converted to AD value (digital value namely after analogue to digital conversion) and sends to micro controller system 105 to process.
In the present embodiment, micro controller system 105 is for judging that after receiving AD value whether described AD value is higher than the High Voltage Threshold set, if described AD is higher than the High Voltage Threshold of setting, then stop the work of air compressor 106, and open blow off valve 107 storage tank pressure release is closed after a specified value.
In the present embodiment, the High Voltage Threshold preset and/or low pressure threshold values both can be defined by user oneself, also can be set by producer is unified when dispatching from the factory by vehicle, again limiting.
On the propons that height sensor 102 is installed on vehicle and/or back axle, for Real-time Collection vehicle bodywork height value and send to micro controller system 105 to process.
In present embodiment, height sensor 102 comprises back axle height sensor and propons height sensor; Described back axle height sensor is installed on vehicle rear axle, for adopting two-way back axle altitude signal, i.e. and the height value of rear; Described propons height sensor is installed on the propons of vehicle, for gathering two-way propons altitude signal, i.e. and the height value of front body.In the present invention, height sensor 102 can be back axle height sensor, also can be propons height sensor, or height sensor 102 not only comprises back axle height sensor but also comprise propons height sensor, does not again limit.
In the present embodiment, micro controller system 105 is also for judging that whether bodywork height value that Real-time Collection arrives is higher than the first setting value, promise bodywork height value is not higher than the first setting value, then continue to judge that whether bodywork height value is lower than the second setting value, promise bodywork height value is not less than the second setting value, then the height maintaining vehicle body is constant.
In the present embodiment, promise bodywork height value is higher than the first setting value, then micro controller system 105 is interrupted according to setpoint frequency and opens blow off valve 107 and be vented.If bodywork height value is lower than the second setting value, then micro controller system 105 judges whether the current speed of a motor vehicle of vehicle is greater than 30km/h, if current vehicle speed is greater than 30km/h, then by air compressor 106 pairs of air bellows inflations; Promise current vehicle speed is not more than 30km/h, then inflated air bellow by storage tank.
Particularly, when the speed of a motor vehicle of described vehicle is not more than 30km/h, and during storage tank internal gas pressure enough large (storage tank air pressure is greater than air bellow internal gas pressure), micro controller system 105 opens solenoid valve 109, is inflated to air bellow by storage tank.When described vehicle speed be not more than 30km/h and storage tank internal gas pressure deficiency (storage tank air pressure is not more than air bellow internal gas pressure) time, or the speed of a motor vehicle of described vehicle is greater than 30km/h, unit sheet 105 opens solenoid valve 109, and open air compressor 106 once to air bellow and storage tank inflation according to setpoint frequency interruption.When height of car is higher than setting value, micro controller system 105 shut electromagnetic valve 109, and continue to storage tank inflation, until storage tank internal gas pressure reaches specified value.
In the present embodiment, the first setting value and/or the second setting value can be set by user oneself, also can be fixed by system, again not limit.
Vehicle door status detector 103 is installed on car door, for detecting opening or closing of described Vehicular door in real time, and when detecting that described vehicle doorn was opened by generation, sends car door opening signal to clicking 105.
In the present embodiment, micro controller system 105, after receiving described car door opening signal, sends the control command of forbidding that bodywork height adjusts.In the present embodiment, if when detecting that described Vehicular door is opened, just indicates that on passenger, the person of unloading goods stops, Here it is will forbid the height of adjustment vehicle body, to prevent passenger or other people are injured.
Mode selector 104, communicates to connect with micro controller system 105, and for receiving the drive type of user-selected vehicle, wherein, the driving model of described vehicle comprises high order modes, cross-country pattern, automatic mode and mode of motion.
In the present embodiment, the different driving models of described vehicle correspond to a reference value of different bodywork height adjustment, such as, be 0 as the words of mark starting point using the normal level of vehicle when static, the bodywork height that so high order modes is corresponding is+40mm, bodywork height corresponding to cross-country pattern is+25mm, and the bodywork height that automatic mode is corresponding is 0mm, and the bodywork height that mode of motion is corresponding is-15mm.The corresponding different setting confidence of a reference value of the bodywork height adjustment of each driving model, described set information comprises High Voltage Threshold noted earlier, low pressure threshold values, specified value, the first setting value and the second setting value, wherein the first setting value and is greater than gold collimation, and the second setting value is less than benchmark and is.
In the present embodiment, unit sheet 105 is also for receiving the driving pattern information of user-selected vehicle, and the set information corresponding according to each driving model adjusts the bodywork height of vehicle.
Micro controller system 105 also can be used for the different driving model that automatically switches, and according to different driving models adjustment car sound pitch degree.
Read-out 108 is installed on vehicular drive indoor, and communicates to connect with micro controller system 105, for showing the CAN information and the bodywork height of described vehicle under current driving model that micro controller system 105 generates.
In the present embodiment, read-out 108 both can show the described CAN information of sending, the riving condition of this vehicle current can also be shown, these riving conditions generally comprise four kinds of riving conditions such as high order modes condition, cross-country mode condition, automatic mode condition and mode of motion condition, accordingly, user can also the bodywork height of vehicle described in the current driving conditions manual switchover of described CAN confidence according to read-out 108 and vehicle.
In the present embodiment, micro controller system 105 is equivalent to " brain " of described vehicle, process various discrepancy signal, and export corresponding output signal after treatment, such as, the altitude signal of the signal in the eyes in the air bellow collected and described vehicle is sent to micro controller system 105(and electronic control unit) time, micro controller system 105(and electronic control unit) pressure signal and altitude signal will be processed and generate corresponding CAN information.
In addition, in the present embodiment, AHC height control system 10 also comprises speed sensor (not shown), communicates to connect with micro controller system 105, for vehicle described in Real-time Collection speed signal and send to micro controller system 105 to process.
Present invention also offers a kind of vehicle, comprise above-mentioned AHC height control system 10.
A kind of AHC height control system provided by the invention and vehicle, the signal sent by receiving each sensor of vehicle body controls pump machine, blow off valve, the electromagnetic valve of air compressor always, thus regulate the air pressure size of air bellow, reach and maintain the constant object of bodywork height, when vehicle capacity increases or reduce, this system to air bellow inflation or venting, to guarantee that bodywork height is in optimum position all the time, can improve the ride comfort of vehicle.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be noted that; for the person of ordinary skill of the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made; these all belong to protection scope of the present invention, therefore, the protection domain of patent of the present invention should be as the criterion with appended power claim.
Claims (6)
1. an AHC height control system and vehicle, be installed on vehicle, it is characterized in that, comprising: pressure sensor, height sensor, vehicle door status detector, mode selector, micro controller system, air bellow, storage tank, air compressor, blow off valve, read-out and electromagnetic valve; Wherein, pressure sensor, height sensor, vehicle door status detector, mode selector, air compressor, blow off valve, read-out and electromagnetic valve are connected with single chip communication respectively; Described air bellow is connected with storage tank by an airline, and described electromagnetic valve is arranged on airline, and described storage tank is connected with air compressor, and described blow off valve is connected on storage tank.
2. AHC height control system according to claim 1, is characterized in that, described pressure sensor is installed in storage tank;
On the propons that described height sensor is installed on vehicle or back axle;
Described vehicle door status detector is installed on car door;
Described read-out is installed on vehicular drive indoor.
3. AHC height control system according to claim 2, it is characterized in that, described height sensor comprises back axle height sensor and propons height sensor, and described back axle height sensor is installed on the back axle of vehicle, and described propons height sensor is installed on the propons of vehicle.
4. AHC height control system according to claim 3, is characterized in that, described air bellow has 4 to be installed on vehicle propons both sides and rear front both sides respectively.
5. AHC height control system according to claim 2, is characterized in that, also comprise the speed sensor that described micro controller system connects.
6. AHC height control system and a vehicle, is characterized in that, described vehicle is provided with the AHC height control system described in the claims 1-5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666974.3A CN105082918A (en) | 2014-11-20 | 2014-11-20 | AHC (Active Height Control) system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410666974.3A CN105082918A (en) | 2014-11-20 | 2014-11-20 | AHC (Active Height Control) system and vehicle |
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| CN105082918A true CN105082918A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410666974.3A Pending CN105082918A (en) | 2014-11-20 | 2014-11-20 | AHC (Active Height Control) system and vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269618A (en) * | 2008-04-25 | 2008-09-24 | 江苏大学 | Control method for damping value of electronic control air spring damping apparatus with three-gear |
| CN102358133A (en) * | 2011-09-01 | 2012-02-22 | 万泰工业（大连）有限公司 | Vehicle height control device |
| JP2013154834A (en) * | 2012-01-31 | 2013-08-15 | Hitachi Automotive Systems Ltd | Suspension control device |
| CN103660837A (en) * | 2013-12-09 | 2014-03-26 | 深圳市德平国瀚汽车电子科技有限公司 | AHC height control system and vehicle |
-
2014
- 2014-11-20 CN CN201410666974.3A patent/CN105082918A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269618A (en) * | 2008-04-25 | 2008-09-24 | 江苏大学 | Control method for damping value of electronic control air spring damping apparatus with three-gear |
| CN102358133A (en) * | 2011-09-01 | 2012-02-22 | 万泰工业（大连）有限公司 | Vehicle height control device |
| JP2013154834A (en) * | 2012-01-31 | 2013-08-15 | Hitachi Automotive Systems Ltd | Suspension control device |
| CN103660837A (en) * | 2013-12-09 | 2014-03-26 | 深圳市德平国瀚汽车电子科技有限公司 | AHC height control system and vehicle |
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Application publication date: 20151125 |
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