CN203770005U - Cold start system of vehicle - Google Patents

Cold start system of vehicle Download PDF

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Publication number
CN203770005U
CN203770005U CN201420039311.4U CN201420039311U CN203770005U CN 203770005 U CN203770005 U CN 203770005U CN 201420039311 U CN201420039311 U CN 201420039311U CN 203770005 U CN203770005 U CN 203770005U
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China
Prior art keywords
heater
tank
oil
switch
major
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Expired - Lifetime
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CN201420039311.4U
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Chinese (zh)
Inventor
汪晖
张赟
于波
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Dongfeng Trucks Co ltd
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Dongfeng Trucks Co ltd
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Abstract

A cold start system of a vehicle comprises a starting capacitor system, a cooling liquid heating system and an engine intake preheating device, the starting capacitor system is characterized in that a 24V storage battery for a vehicle is formed by connecting a super capacitor and a low-temperature storage battery in parallel, an engine air inlet preheating device comprises a preheating switch (1), an air inlet heating relay (2), a preheating valve (3) and an electric heater in an engine air inlet manifold, the anode of the preheating switch (1) is connected with the 24V storage battery for the vehicle, the cathode of the preheating switch (1) is connected with the anode of a coil of the air inlet heating relay (2), the cathode of the coil of the air inlet heating relay (2) is grounded, one contact end of the air inlet heating relay (2) is connected with the 24V storage battery for the vehicle, the other contact end of the air inlet heating relay (2) is connected with the anode of the preheating valve (3), the cathode of the preheating valve (3) is grounded, and the preheating valve. The normal starting of the engine in a low-temperature environment is realized.

Description

A kind of cold-start system of vehicle
Technical field
The utility model relates to a kind of starting system of vehicle, more particularly relates to a kind of cold-start system of vehicle, belongs to automotive electrical system design field.
Background technique
The motor vehicle that the diesel engine of take is power, under the regional low-temperature conditions such as high and cold, plateau, due to the impact of ambient temperature, the temperature of the intake temperature of motor, fuel oil temperature and lubricant oil is along with external temperature synchronously reduces.The decline of intake temperature and fuel oil temperature, reduces the mixture temperature in engine inlets; Because lubricating oil temperature declines, its mobility variation, causes the resistance moving between engine cylinder-body and piston to increase, therefore motor is difficult to start at low temperatures simultaneously.Because engine start is relevant with engine speed and fuel injection quantity, and fuel injection quantity is all relevant with intake temperature, coolant temperature, fuel oil temperature, improve intake temperature, coolant temperature and fuel oil temperature and can improve fast fuel injection quantity and injection time, improve battery discharging ability and just can improve engine speed; Therefore in order to improve engine low-temperature starting-up performance, guarantee that motor is at high and cold, plateau section normal starting, when the cold-start system of design vehicle, except the good motor of coupling, also need to consider from power-supply system, oil supply system.
Chinese patent notice of authorization number: CN2625596Y, notice of authorization day: on July 14th, 2004, name is called in the utility model patent of < < diesel cold starting preheating device for engineering machinery > > and discloses a kind of industrial diesel engine cold start preheating device, it is by heater, intake pipe, outlet pipe and fuel pipe form, one end of intake pipe is connected with the water intake of heater, one end of fuel pipe is connected with the filler opening of heater, intake pipe, on fuel pipe, be respectively equipped with water pipe ball valve, oil pipe ball valve.This model utility is by the mode of heated diesel cooling liquid, before starting, improves diesel engine the temperature of cylinder cap, cylinder body, thereby the compression temperature while improving diesel engine starting in cylinder, has the warming up time of energy compression engine, reduce wearing and tearing, easy to operate, the high reliability of engine cold-start.But, this cold start preheating device has fuel pipe to be connected with the filler opening of heater in only having considered, ambient temperature lower than-25 degree when following oil in fuel tank and oil pipe be frozen state, at this time motor is difficult to start by the mode of preheating, does not reach the warming up time of theoretic compression engine, the wearing and tearing of minimizing engine cold starting.For guaranteeing that motor can normal starting under the degree environment of low temperature-41, need to be from the consideration that matches of engine starting system during design, comprehensive power system, oil supply system, engine coolant system, provide cold starting performance from entire automobile electric system, meets cold-starting requirement.
Summary of the invention
The purpose of this utility model is to be difficult to meet the problem such as low temperature cold-start performance under the low temperature environments such as high and cold, plateau for existing vehicle, and a kind of cold-start system of vehicle is provided.
For achieving the above object, technical solution of the present utility model is: a kind of cold-start system of vehicle, comprise starting capacitance system and cooling liquid heating system, in described starting capacitance system, by super capacitor is in parallel with low-temperature storage battery, form automobile-used 24V storage battery, also include engine charge Preheating unit, described engine charge Preheating unit comprises preheating switch, inlet air heating relay, electric heater in heat-riser valve and engine intake manifold, described preheating switch positive pole connects automobile-used 24V storage battery, it is anodal that preheating switch negative pole connects inlet air heating relay coil, inlet air heating relay coil minus earth, the automobile-used 24V storage battery of inlet air heating relay contact one termination, another termination heat-riser valve 3 positive poles of inlet air heating relay contact, heat-riser valve minus earth, and heat-riser valve is connected with the electric heater in engine intake manifold.
Also include fuel heating system, described fuel heating system comprises fuel Heating controller, fuel Heating is controlled display screen, heater, major-minor fuel tank throw over switch and major-minor oil tank changeover valve, described heater comprises main fuel tank oil inlet pipe heater, main fuel tank heater, drop tank heater, drop tank oil inlet pipe heater, electromagnetic pump oil inlet pipe heater, drop tank return tube heater, heater for oil-water separator, fine filtering heater, electromagnetic pump oil outlet tube heater and engine oil inlet pipe heater, described fuel Heating is controlled on display screen and is integrated with fuel Heating switch and 11 tutorial light, power supply indicator is wherein connected in series with fuel Heating switch, 1# tutorial light is connected with engine oil inlet pipe heater, 2# tutorial light is connected with electromagnetic pump oil outlet tube heater, 3# tutorial light is connected with fine filtering heater, 4# tutorial light is connected with heater for oil-water separator, 5# tutorial light is connected with drop tank return tube heater, 6# tutorial light is connected with electromagnetic pump oil inlet pipe heater, 7# tutorial light is connected with drop tank oil inlet pipe heater, 8# tutorial light is connected with drop tank heater, 9# tutorial light is connected with main fuel tank heater, 10# tutorial light is connected with main fuel tank oil inlet pipe heater, in described fuel Heating controller, be provided with a plurality of temp controllers corresponding with heater, described a plurality of temp controllers are connected with corresponding heater respectively, described major-minor fuel tank throw over switch is double-contact rocker switch, comprise main fuel tank switch and drop tank switch, the automobile-used 24V battery positive voltage of its public cathode contact termination, 2 cathode contact ends connect respectively main fuel tank valve and the fuel Heating controller of major-minor oil tank changeover valve, the drop tank valve of major-minor oil tank changeover valve and fuel Heating controller, described major-minor oil tank changeover valve is three-way magnetic valve, the import of major-minor oil tank changeover valve is connected with engine oil inlet pipe, the outlet of major-minor oil tank changeover valve is connected with drop tank with main fuel tank respectively, major-minor oil tank changeover valve is double-contact conversion, its public cathode contact end bonding, 2 cathode contact ends connect respectively main fuel tank switch negative pole and the drop tank switch negative pole of major-minor fuel tank throw over switch.
Compared with prior art, the beneficial effects of the utility model are:
1, modern design, has realized the normal starting of motor under the degree environment of low temperature-41.The utility model comprises starting capacitance system, cooling liquid heating system and engine charge Preheating unit, the automobile-used 24V storage battery of super capacitor in starting capacitance system formation in parallel with low-temperature storage battery, improved thus battery discharging ability, thereby improved engine speed, improved vehicle cold starting performance; Meanwhile, cooling liquid heating system and engine charge Preheating unit have improved respectively intake temperature and coolant temperature, thereby have improved fuel injection quantity and injection time, and then have improved the cold starting efficiency of vehicle.
2, in the utility model, also include fuel heating system, thereby improved fuel oil temperature, fuel injection quantity and injection time have further been improved, realized the normal starting technical requirements under low temperature environment, quality and the usability under the environment on high and cold, plateau of vehicle have been promoted, can reach ℃ normal starting in low temperature-41, meet better the vehicle cold starting requirement of plateau, extremely frigid zones.
Accompanying drawing explanation
Fig. 1 is starting capacitance system architecture schematic diagram in the utility model.
Fig. 2 is the utility model intermediate fuel oil heating system structural representation.
In figure: preheating switch 1, inlet air heating relay 2, heat-riser valve 3, major-minor fuel tank throw over switch 4, main fuel tank oil inlet pipe heater 5, main fuel tank heater 6, drop tank heater 7, drop tank oil inlet pipe heater 8, electromagnetic pump oil inlet pipe heater 9, drop tank return tube heater 10, heater for oil-water separator 11, fine filtering heater 12, electromagnetic pump oil outlet tube heater 13, engine oil inlet pipe heater 14, fuel Heating switch 15, power supply indicator 16, ON gear switch 17, major-minor oil tank changeover valve 18.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of cold-start system of vehicle, comprises starting capacitance system, cooling liquid heating system and engine charge Preheating unit.The starting capacitance system > > content of a utility application < < vehicle of applying on the same day according to the applicant, in described starting capacitance system, by super capacitor is in parallel with low-temperature storage battery, form automobile-used 24V storage battery, this automobile-used 24V storage battery is as the cold-start system power supply of this vehicle, and wherein super capacitor is formed by capacitor and Capacity control device assembly; In the utility model, by forming automobile-used 24V storage battery by super capacitor is in parallel with low-temperature storage battery, improve starting voltage and discharge current, improved engine low-temperature starting-up performance.The cooling liquid heating system > > content of a utility application < < vehicle of applying on the same day according to the applicant, described cooling liquid heating system comprises coolant heater, cooling liquid adds thermoelectromagnetic pump and turnover oil pipe thereof, pump motor, cooling liquid heating controller, cooling liquid heater switch, power supply indicator and status indicator lamp, wherein cooling liquid heater switch positive pole connects automobile-used 24V battery positive voltage, the pin 4 of cooling liquid heating controller connects automobile-used 24V battery positive voltage, cooling liquid heating system has improved the coolant temperature of vehicle, thus the cold-starting ability that improved automobile.
Referring to Fig. 1, described engine charge Preheating unit comprises the electric heater in preheating switch 1, inlet air heating relay 2, heat-riser valve 3 and engine intake manifold, described preheating switch 1 positive pole connects automobile-used 24V storage battery, preheating switch 1 negative pole connects inlet air heating relay 2 coil electrodes, inlet air heating relay 2 coil minus earths, the automobile-used 24V storage battery of inlet air heating relay 2 contact one termination, another termination heat-riser valve 3 positive poles of inlet air heating relay 2 contacts, heat-riser valve 3 minus earths, and heat-riser valve 3 is connected with the electric heater in engine intake manifold.Specific works process is as follows: before engine start, driver needs closed preheating switch 1, inlet air heating relay 2 coil-end power on, its make contact, heat-riser valve 3 powers on, connection is arranged on gas in the suction tude that electric heater in engine intake manifold carrys out heated engine, has improved intake temperature, can make motor normal starting under the degree environment of low temperature-25.
Referring to Fig. 2, the cold-start system of this vehicle also includes fuel heating system, and described fuel heating system comprises fuel Heating controller, fuel Heating control display screen, heater, major-minor fuel tank throw over switch 4 and major-minor oil tank changeover valve 18.Described heater is that the position integrated heating silks such as main fuel tank, drop tank, main fuel tank oil inlet pipe, drop tank oil inlet pipe, drop tank return tube, electromagnetic pump oil inlet pipe, electromagnetic pump oil outlet tube, oil and water seperator, engine oil inlet pipe are formed, and comprises main fuel tank oil inlet pipe heater 5, main fuel tank heater 6, drop tank heater 7, drop tank oil inlet pipe heater 8, electromagnetic pump oil inlet pipe heater 9, drop tank return tube heater 10, heater for oil-water separator 11, fine filtering heater 12, electromagnetic pump oil outlet tube heater 13 and engine oil inlet pipe heater 14.Heater adopts PTC thermistor wire as heating material, and its characteristic is the rising along with temperature, and resistance value increases, and electric current reduces, and when temperature reaches 60 ℃, temperature no longer raises.Entering in heater, return tube heater, its resistance wire and oil pipe become one, and wire is drawn in outside; Fuel tank heater, its resistance wire and oil pipe, fuel-quantity transducer etc. become one, and are arranged in fuel tank, and wire is drawn in outside; Oil and water seperator, adopts disc type heater to wrap in oil and water seperator outside outward, draws wire simultaneously.
Referring to Fig. 2, it is a display floater that described fuel Heating is controlled display screen in this case, fuel Heating is controlled on display screen and is integrated with fuel Heating switch 15 and 11 tutorial light, wherein red power supply indicator 16 is connected in series with fuel Heating switch 15, when power supply indicator 16, light and represent fuel Heating switch 15 closures, this fuel heating system powers on, all the other 10 tutorial light are connected with each heater respectively, indicate respectively the working state of each heater, specific as follows: 1# tutorial light is connected with engine oil inlet pipe heater 14, 2# tutorial light is connected with electromagnetic pump oil outlet tube heater 13, 3# tutorial light is connected with fine filtering heater 12, 4# tutorial light is connected with heater for oil-water separator 11, 5# tutorial light is connected with drop tank return tube heater 10, 6# tutorial light is connected with electromagnetic pump oil inlet pipe heater 9, 7# tutorial light is connected with drop tank oil inlet pipe heater 8, 8# tutorial light is connected with drop tank heater 7, 9# tutorial light is connected with main fuel tank heater 6, 10# tutorial light is connected with main fuel tank oil inlet pipe heater 5.
Referring to Fig. 2, described fuel Heating controller is that insurance, relay, a plurality of temp controller corresponding with heater and control unit etc. are arranged in a box; Described temp controller is also temperature detect switch (TDS), and described a plurality of temp controllers are connected with corresponding heater respectively, the break-make of control heater.During work, temp controller, according to the temperature variation of working environment, makes its inner make contact or disconnection, reaches and is switched on or switched off object; Be specially at fuel oil temperature during lower than 7 ℃, temp controller is connected automatically, is attached thereto the heater connecing and starts fuel oil to heat, and when fuel oil temperature reaches 24 ℃, temp controller disconnects, and is attached thereto the heater connecing and automatically stops heating.
Referring to Fig. 2, described major-minor fuel tank throw over switch 4 is double-contact rocker switch, comprise main fuel tank switch and drop tank switch, the automobile-used 24V battery positive voltage of its public cathode contact termination, 2 cathode contact ends connect respectively drop tank valve and the fuel Heating controller of the main fuel tank valve of major-minor oil tank changeover valve 18 and fuel Heating controller, major-minor oil tank changeover valve 18.The effect of major-minor fuel tank throw over switch 4 is the conversions that power on of controlling major-minor oil tank changeover valve 18, when major-minor oil tank changeover valve 18 late gate that powers on is opened, if major-minor fuel tank throw over switch 4 is switched to main fuel tank, major-minor oil tank changeover valve 18 valve closing drop tank oil circuits, open main fuel tank oil circuit, fuel oil is transported to engine oil inlet pipe from main fuel tank; If major-minor fuel tank throw over switch 4 is switched to drop tank, major-minor oil tank changeover valve 18 valve opening drop tank oil circuits, close main fuel tank oil circuit, and fuel oil is transported to engine oil inlet pipe from drop tank.Described major-minor oil tank changeover valve 18 is three-way magnetic valve, inside has needle, and the import of major-minor oil tank changeover valve 18 is connected with engine oil inlet pipe, and 18 outlets of major-minor oil tank changeover valve are connected with drop tank with main fuel tank respectively; Major-minor oil tank changeover valve 18 is double-contact conversion, its public cathode contact end bonding, and 2 cathode contact ends connect respectively main fuel tank switch negative pole and the drop tank switch negative pole of major-minor fuel tank throw over switch 4.
Referring to Fig. 2, when vehicle is opened, ON gear switch 17 is got to start gear, vehicle cannot start, and should open this fuel heating system, and its working procedure is as follows: first major-minor fuel tank throw over switch 4 is got to main fuel tank gear, now major-minor oil tank changeover valve 18 powers on, and main fuel tank oil circuit is connected; Then closed fuel Heating switch 15, the power supply indicator 16 of its serial connection is lighted, show that the power-supply system of main fuel tank circuit is now working properly, the power connection of this fuel heating system, fuel Heating controller first carries out self check, approximately 10 seconds endurance, the tutorial light that now fuel Heating is controlled on display screen shows different colours: corresponding heater or its power supply circuits of red expression exist fault, blue each heater fault-free that represents, and each heater not yet starts heating; After self check completes, this fuel heating system enters working state, and tutorial light sends green, represents that corresponding heater heats; Heating 5-15 minute, car load oil-fired system enters normal work.If automobile cab instrument shows in main fuel tank that liquid level reduces, Low oil Fuel to be when maintaining follow-up Vehicle Driving Cycle distance, select drop tank fuel feeding, major-minor fuel tank throw over switch 4 is switched to drop tank gear, and now major-minor oil tank changeover valve 18 powers on, and drop tank oil circuit is connected; Then closed fuel Heating switch 15, the power supply indicator 16 of its serial connection is lighted, the power-supply system that shows drop tank circuit is working properly, the power connection of fuel heating system, fuel Heating controller first carries out self check, 10 seconds endurance, tutorial light on display screen shows different colours: corresponding heater or its power supply circuits of red expression exist fault, and blue expression heater not yet starts heating; After self check completes, fuel heating system enters working state, and tutorial light sends green, represents that corresponding heater heats; Heating 5-15 minute, car load oil-fired system enters normal work, thereby vehicle can be started under the environment lower than-40 degree, and the vehicle of having realized under plateau, psychro-environment normally starts.
In the utility model, by starting capacitance system, improved battery discharging ability; When ambient temperature is spent lower than-41, pilot engine respectively air inlet heating device, fuel-firing preheating system, cooling liquid heating system, improve gas temperature in corresponding suction tude, the interior fuel oil temperature of oil pump, engine coolant temperature, thereby fuel injection quantity and injection time have been improved, many-side has improved the cold starting efficiency of vehicle, realized the normal starting of motor under low temperature environment, met motor vehicle and used plateau, extremely frigid zones cold starting requirement.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, said structure all should be considered as belonging to protection domain of the present utility model.

Claims (2)

1. the cold-start system of a vehicle, comprise starting capacitance system and cooling liquid heating system, in described starting capacitance system, by super capacitor is in parallel with low-temperature storage battery, form automobile-used 24V storage battery, it is characterized in that: also include engine charge Preheating unit, described engine charge Preheating unit comprises preheating switch (1), inlet air heating relay (2), electric heater in heat-riser valve (3) and engine intake manifold, described preheating switch (1) positive pole connects automobile-used 24V storage battery, preheating switch (1) negative pole connects inlet air heating relay (2) coil electrode, inlet air heating relay (2) coil minus earth, the automobile-used 24V storage battery of inlet air heating relay (2) contact one termination, another termination heat-riser valve (3) positive pole of inlet air heating relay (2) contact, heat-riser valve (3) minus earth, and heat-riser valve (3) is connected with the electric heater in engine intake manifold.
2. the cold-start system of a kind of vehicle according to claim 1, it is characterized in that: also include fuel heating system, described fuel heating system comprises fuel Heating controller, fuel Heating is controlled display screen, heater, major-minor fuel tank throw over switch (4) and major-minor oil tank changeover valve (18), described heater comprises main fuel tank oil inlet pipe heater (5), main fuel tank heater (6), drop tank heater (7), drop tank oil inlet pipe heater (8), electromagnetic pump oil inlet pipe heater (9), drop tank return tube heater (10), heater for oil-water separator (11), fine filtering heater (12), electromagnetic pump oil outlet tube heater (13) and engine oil inlet pipe heater (14), described fuel Heating is controlled on display screen and is integrated with fuel Heating switch (15) and 11 tutorial light, power supply indicator wherein (16) is connected in series with fuel Heating switch (15), 1# tutorial light is connected with engine oil inlet pipe heater (14), 2# tutorial light is connected with electromagnetic pump oil outlet tube heater (13), 3# tutorial light is connected with fine filtering heater (12), 4# tutorial light is connected with heater for oil-water separator (11), 5# tutorial light is connected with drop tank return tube heater (10), 6# tutorial light is connected with electromagnetic pump oil inlet pipe heater (9), 7# tutorial light is connected with drop tank oil inlet pipe heater (8), 8# tutorial light is connected with drop tank heater (7), 9# tutorial light is connected with main fuel tank heater (6), 10# tutorial light is connected with main fuel tank oil inlet pipe heater (5), in described fuel Heating controller, be provided with a plurality of temp controllers corresponding with heater, described a plurality of temp controllers are connected with corresponding heater respectively, described major-minor fuel tank throw over switch (4) is double-contact rocker switch, comprise main fuel tank switch and drop tank switch, the automobile-used 24V battery positive voltage of its public cathode contact termination, 2 cathode contact ends connect respectively main fuel tank valve and the fuel Heating controller of major-minor oil tank changeover valve (18), the drop tank valve of major-minor oil tank changeover valve (18) and fuel Heating controller, described major-minor oil tank changeover valve (18) is three-way magnetic valve, the import of major-minor oil tank changeover valve (18) is connected with engine oil inlet pipe, the outlet of major-minor oil tank changeover valve (18) is connected with drop tank with main fuel tank respectively, major-minor oil tank changeover valve (18) is double-contact conversion, its public cathode contact end bonding, 2 cathode contact ends connect respectively main fuel tank switch negative pole and the drop tank switch negative pole of major-minor fuel tank throw over switch (4).
CN201420039311.4U 2014-01-22 2014-01-22 Cold start system of vehicle Expired - Lifetime CN203770005U (en)

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Application Number Priority Date Filing Date Title
CN201420039311.4U CN203770005U (en) 2014-01-22 2014-01-22 Cold start system of vehicle

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Application Number Priority Date Filing Date Title
CN201420039311.4U CN203770005U (en) 2014-01-22 2014-01-22 Cold start system of vehicle

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438028A (en) * 2015-11-02 2017-02-22 钱皮恩发动机技术有限公司 Improved cold weather starter generator
CN106499553A (en) * 2016-12-20 2017-03-15 陕西北方动力有限责任公司 A kind of diesel engine low temp. starting control system, method and cold-starting device
CN113153545A (en) * 2021-04-12 2021-07-23 上汽依维柯红岩商用车有限公司 Dual-oil-tank switching control system of diesel commercial vehicle and control method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106438028A (en) * 2015-11-02 2017-02-22 钱皮恩发动机技术有限公司 Improved cold weather starter generator
CN106499553A (en) * 2016-12-20 2017-03-15 陕西北方动力有限责任公司 A kind of diesel engine low temp. starting control system, method and cold-starting device
CN113153545A (en) * 2021-04-12 2021-07-23 上汽依维柯红岩商用车有限公司 Dual-oil-tank switching control system of diesel commercial vehicle and control method thereof
CN113153545B (en) * 2021-04-12 2023-04-28 上汽红岩汽车有限公司 Dual-oil-tank switching control system and control method for diesel commercial vehicle

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Granted publication date: 20140813