CN204827692U - Special gas ECU of DVVT gasoline car engine - Google Patents
Special gas ECU of DVVT gasoline car engine Download PDFInfo
- Publication number
- CN204827692U CN204827692U CN201520525098.2U CN201520525098U CN204827692U CN 204827692 U CN204827692 U CN 204827692U CN 201520525098 U CN201520525098 U CN 201520525098U CN 204827692 U CN204827692 U CN 204827692U
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- China
- Prior art keywords
- gas
- dvvt
- ecu
- combustion gas
- control chip
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- Expired - Fee Related
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- 239000003502 gasoline Substances 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 44
- 239000000567 combustion gas Substances 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 18
- 238000010304 firing Methods 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 9
- 230000001052 transient effect Effects 0.000 claims description 7
- 239000003345 natural gas Substances 0.000 claims description 5
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000004377 microelectronic Methods 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012857 repacking Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 241000239290 Araneae Species 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- SAZUGELZHZOXHB-UHFFFAOYSA-N acecarbromal Chemical compound CCC(Br)(CC)C(=O)NC(=O)NC(C)=O SAZUGELZHZOXHB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a special gas ECU of DVVT gasoline car engine aims at solving the general matching difficulty with the motorcycle type of current DVVT engine fuel ECU system, or simple force ordinary engine fuel ECU move to the DVVT engine, causes repacking line complicacy, the higher technical problem of gas consumption. Its include the casing with encapsulate in controller in the casing, the controller includes control chip, and respectively with control chip corresponds power management module, high limit switch driver, instantaneous big current driver, the fuel connected and fires gas shift switch, gas pressure sensor and gas temperature sensor. The utility model discloses simple structure, novel unique, according to the characteristics of DVVT engine, the accurate control of control is sprayed to the double fuel in good time to a set of being set for by the chronogenesis of (air) intake valve and exhaust valve, makes DVVT engine car performance under the state of gas more stable, and the energy consumption is little, and is energy -concerving and environment -protective, has good society and economic benefits.
Description
Technical field
The utility model relates to technical field of automobile control, is specifically related to the special combustion gas ECU of a kind of DVVT gasoline vehicle engine.
Background technique
Motor is automobile " heart ", VVT(VariableValveTiming) Variable Valve Timing Technique of IC Engine is one of instantly popular engine technology, it, by carrying out the distribution of intake and exhaust to the control of valve, is applied in Modern Car in the last few years more and more.DVVT(DualVariableValveTiming) i.e. intake and exhaust co-continuous Variable Valve Timing, can be described as five-star form in current valve VVT technology.The motor of VVT can only regulate intake valve, and DVVT motor can realize regulating inlet and exhaust valve simultaneously, has slow speed high pulling torque, the high-power excellent specific property of high revolution, technically maintains the leading position.
In recent years, the energy brought in the face of development of automobile and external pressure, climbing up and up along with fuel price, and the formal appearance of new energy encouragement policy, be that the automobile market of main fuel is faced with new fission with gasoline, CNG(compressed natural gas) oil gas dual-fuel car with brand-new advantage such as its energy-saving and environmental protection, safety etc., promptly become the product of new generation of Modern Home sedan-chair.Because DVVT technology automobile has critical advantage compared with orthodox car, so DVVT technology coordinates CNG double fuel technology to have vast potential for future development.Meanwhile, the ECU technology of CNG oil gas dual-fuel car also will be reformed thereupon, ECU(ElectronicControlUnit) electronic control unit, also known as " car running computer ", " vehicle-mounted computer " etc., is then automobile specified computer controller from purposes.At present DVVT engine gas ECU system on the market generally with vehicle mate difficulty, or simple being imposed on DVVT motor by common engine combustion gas ECU runs, cause repacking line complicated, gas consumption is higher, cause its Economy power character all greatly weak, lose the soul of DVVT motor, these problems hinder the repacking enthusiasm of DVVT motor car owner, hinder the universal of green energy resource.
Summary of the invention
The utility model is intended to solve that existing DVVT engine gas ECU system is general mates difficulty with vehicle, or simple being imposed on DVVT motor by common engine combustion gas ECU runs, and causes and reequips line complexity, technical problem that gas consumption is higher.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
Design the special combustion gas ECU of a kind of DVVT gasoline vehicle engine, comprise housing and be packaged in the controller in described housing, described controller comprises control chip, and the power management module, high side switches driver, transient high-current driver, fuel-firing gas-firing throw over switch, gas pressure sensor and the gas temperature sensor that connect corresponding to described control chip respectively
Described power management module is connected with externally fed power supply; Described high side switches driver connects with in former car, the high-pressure solenoid valve of natural gas line is corresponding; Described transient high-current driver is corresponding with the combustion gas gas spray valve in former car to be connected; Described fuel-firing gas-firing throw over switch is provided with status indicator lamp; Described gas pressure sensor and gas temperature sensor are arranged in the combustion gas gas spray valve of former car;
Described control chip respectively with former car oil nozzle, former car ignition switch, former car ECU(and former car electronic control unit) and former car OBD(and former car onboard diagnostic system) correspondingly to connect.
Preferably, described controller also comprises the buzzer warning module be connected with described control chip.
Preferably, described controller also comprises the serial communication modular matched with exterior PC interface.
Preferably, described gas pressure sensor and gas temperature sensor carry out data communication by CAN communication network and described control chip.
Preferably, be provided with high-voltage control circuit wiring connection jack on the housing and be connected jack with low voltage communication circuit wiring.
Preferably, described control chip is the control chip that automotive grade 32 bit-type number that Freescale semiconductor company produces is MAC57D54H.
Preferably, described power management module is the model that ST Microelectronics produces is the power management chip of L99PM62XP.
Preferably, described housing is made up of ABS resin material.
The beneficial effects of the utility model are:
1. effectively can solve CNG double fuel auto modification temperature and air pressure in DVVT motor uses, according to the feature sequential of intake valve and exhaust valve, control the discharge time of gas spray valve and the gas supply amount of automobile oil nozzle, the efficiency of automobile in gas process is made to reach consistent with power and fuel oil, under combustion gas state, by automatically controlling the compensation rate of gasoline, reliable and stable, ensure vehicle normal operation in the process of moving, make the performance of vehicle more stable.
2. the utility model is in order to be applicable to the characteristic of DVVT motor, carry out except control analysis except gathering ECU signal from former car traditionally to system, make controller single pass-through read the discharge time of mixed linear parameter to gas spray valve to control, the basis of linear correction value also adds the nonlinear Correction and Control of breakpoint, ensure that the power character of DVVT engine gas system, Economy and exhaust emission standard parameters all reach optimum.
3. the utility model structure is simple, novel unique, according to the feature of DVVT motor, by the sequential of intake valve and exhaust valve and a set of accurate control to the in good time spraying fire of double fuel set, make DVVT engine automobile performance under the state of combustion gas more stable, energy consumption is little, energy-conserving and environment-protective, has good Social and economic benef@.
Accompanying drawing explanation
Fig. 1 is module frame diagram of the present utility model;
Fig. 2 is the plan structure schematic diagram of the utility model middle shell;
Wherein, 1 is housing, and 2 is high-voltage control circuit wiring connection jack; 3 is low voltage communication circuit wiring connection jack.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described, but the following example is only used to describe mode of execution of the present utility model in detail, and limits scope of the present utility model never in any form.
Embodiment 1: the special combustion gas ECU of a kind of DVVT gasoline vehicle engine, and see Fig. 1, Fig. 2, the controller comprising housing 1 and be packaged in this housing, housing 1 is made up of ABS resin material, has the effect of protection controller and heat radiation.This controller comprises control chip, and the power management module, high side switches driver, transient high-current driver, fuel-firing gas-firing throw over switch, gas pressure sensor and the gas temperature sensor that connect corresponding to control chip respectively.
The control chip that this control chip is automotive grade 32 bit-type number that Freescale semiconductor company produces is MAC57D54H, select high speed, stable automotive grade 32 control chips, on the basis of the repeatedly operation such as filtering, isolation, incorporate again highly sensitive power management module, ensure that whole ECU's is stable, the features such as antijamming capability is strong.Greatly reduce the repair rate of ECU, and increase its working life.This power management module is connected with externally fed power supply, and the input end of power management module is externally fed power supply (i.e. the storage battery of former car), and power supply exports to controller circuitry module at different levels through power management module.This power management module is the model that ST Microelectronics produces is the power management chip of L99PM62XP; there is diagnosis and the function for monitoring of complete Fail safe protection and system; quiescent current consumption is kept to minimize, to improve continuous operation ability and the reliability of vehicle electronic control unit.
High side switches driver connects with in former car, the high-pressure solenoid valve of natural gas line is corresponding, for controlling the opening and closing of natural gas line high-pressure solenoid valve in former car.Transient high-current driver is corresponding with the combustion gas gas spray valve in former car to be connected, for the combustion gas tolerance of spraying needed for drived control, and the minimum fuel injection quantity that automobile is required under certain operating mode.
Fuel-firing gas-firing throw over switch is provided with status indicator lamp, control chip is connected with fuel-firing gas-firing throw over switch, accept the signal of fuel-firing gas-firing throw over switch, switch the state of fuel oil and combustion gas, return to the signal of throw over switch residue gas quantity simultaneously, by throw over switch control the light on and off of tutorial light illustrate intuitively residual gas amount number.
Gas pressure sensor and gas temperature sensor are arranged in the combustion gas gas spray valve of former car, be used for detecting the pressure and temperature of gas in gas spray valve, enable controller control the condition of gas burning system startup, ensure the operation that gas burning system is normal, stable.This gas pressure sensor and gas temperature sensor carry out stable data communication by CAN communication network and described control chip, guarantee control chip precise and stable collect sensor information.
Control chip is respectively with former car oil nozzle, former car ignition switch, former car ECU electronic control unit with former car OBD onboard diagnostic system is corresponding connects, with former car ECU, former car OBD realizes CAN network or K spider lines realizes full compatible communication, reads the data informations such as passed back engine rotational speed signal, supply voltage value, engine coolant temperature signal from former car OBD.
This controller also comprises the buzzer warning module be connected with described control chip, can give the alarm and automatically cut off ECU power supply, cut-out source of the gas, be switched to fuel states when unusual circumstance.Ensure vehicle normal operation in the process of moving, guard against fortuitous event and occur, make the performance of car more stable.
This controller also comprises the serial communication modular matched with exterior PC interface, all signals can be connected with outer PC by this serial communication modular, can directly be modified to each controling parameters of motor by upper-position unit, greatly facilitate engineer to demarcate engine parameter, thus it is portable between different DVVT vehicle to improve this ECU, installation is simple, debugging conveniently, accurately, thus makes automobile reach high speed, stable object in the process of moving.
Housing is provided with high-voltage control circuit wiring connection jack 2 and is connected jack 3 with low voltage communication circuit wiring, high-voltage control circuit is separated with low voltage communication circuit, effectively ensure that the reliability of communication and the accuracy of control, and simplify the complexity that when installing combustion gas ECU, wire harness intersects, be convenient to very much install.
This controller can realize and the full compatible communication of former car based on CAN network or K spider lines, itself and former car ECU, former car OBD connects, former car can be read to the control signal of oil nozzle and former car crankshaft signal from former car ECU, according to the former car ECU collected to the state of a control of fuel injection signal, and in conjunction with the temporal characteristics of intake valve and exhaust valve in DVVT technology, required combustion gas tolerance of spraying is controlled by transient high-current driver drives, and the minimum fuel injection quantity that automobile is required under certain operating mode, design the peculiar accuracy-control system for DVVT engine gas system, combustion gas is made to reach the most perfect firing effect, adapt to the exhaust emission standard of DVVT engine automobile completely, get rid of the fault caused due to the mismatch problem of the oil-fired system of combustion gas system motor.Controller also reads the data information such as engine rotational speed signal, supply voltage value, engine coolant temperature signal passed back in former car OBD from former car OBD, gas burning system must be ensured under suitable condition, could transition status be opened, ensure that the safety and stability of automobile.
Component equipment involved in the embodiment above if no special instructions, is customary components equipment.
In conjunction with the accompanying drawings and embodiments mode of execution of the present utility model is elaborated above, but the utility model is not limited to above-mentioned mode of execution, in the ken that those of ordinary skill in the art possess, can also carry out changing or changing under the prerequisite not departing from the utility model aim.
Claims (8)
1. the special combustion gas ECU of DVVT gasoline vehicle engine, it is characterized in that, comprise housing and be packaged in the controller in described housing, described controller comprises control chip, and the power management module, high side switches driver, transient high-current driver, fuel-firing gas-firing throw over switch, gas pressure sensor and the gas temperature sensor that connect corresponding to described control chip respectively
Described power management module is connected with externally fed power supply; Described high side switches driver connects with in former car, the high-pressure solenoid valve of natural gas line is corresponding; Described transient high-current driver is corresponding with the combustion gas gas spray valve in former car to be connected; Described fuel-firing gas-firing throw over switch is provided with status indicator lamp; Described gas pressure sensor and gas temperature sensor are arranged in the combustion gas gas spray valve of former car;
Described control chip is respectively with former car oil nozzle, former car ignition switch, former car ECU with former car OBD is corresponding connects.
2. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, described controller also comprises the buzzer warning module be connected with described control chip.
3. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, described controller also comprises the serial communication modular matched with exterior PC interface.
4. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, described gas pressure sensor and gas temperature sensor carry out data communication by CAN communication network and described control chip.
5. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, is provided with high-voltage control circuit wiring connection jack on the housing and is connected jack with low voltage communication circuit wiring.
6. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, the control chip that described control chip is automotive grade 32 bit-type number that Freescale semiconductor company produces is MAC57D54H.
7. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, is characterized in that, described power management module is the model that ST Microelectronics produces is the power management chip of L99PM62XP.
8. the special combustion gas ECU of DVVT gasoline vehicle engine according to claim 1, it is characterized in that, described housing is made up of ABS resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525098.2U CN204827692U (en) | 2015-07-20 | 2015-07-20 | Special gas ECU of DVVT gasoline car engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520525098.2U CN204827692U (en) | 2015-07-20 | 2015-07-20 | Special gas ECU of DVVT gasoline car engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827692U true CN204827692U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520525098.2U Expired - Fee Related CN204827692U (en) | 2015-07-20 | 2015-07-20 | Special gas ECU of DVVT gasoline car engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204827692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167164A (en) * | 2021-11-11 | 2022-03-11 | 潍柴动力股份有限公司 | High-side power supply detection method, device, electronic device and storage medium |
-
2015
- 2015-07-20 CN CN201520525098.2U patent/CN204827692U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167164A (en) * | 2021-11-11 | 2022-03-11 | 潍柴动力股份有限公司 | High-side power supply detection method, device, electronic device and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160720 |