CN103303140B - Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system - Google Patents
Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system Download PDFInfo
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- CN103303140B CN103303140B CN201310221867.5A CN201310221867A CN103303140B CN 103303140 B CN103303140 B CN 103303140B CN 201310221867 A CN201310221867 A CN 201310221867A CN 103303140 B CN103303140 B CN 103303140B
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Abstract
The invention relates to a double-H operated power takeoff electrical control system capable of carrying out traveling power take-off. The electrical control system comprises a gas storage cylinder which is communicated with a gas inlet of a power takeoff after sequentially passing through a power take-off electromagnetic valve and a high-gear shielding valve and meanwhile is communicated with a double-H valve in a rear auxiliary box double-H control system after sequentially passing through a stop electromagnetic valve and a neutral position cylinder; the coil of the power take-off electromagnetic valve is connected in series with a power take-off switch and a low-gear control switch; the coil of the stop electromagnetic valve is connected in series with a stop switch; in the traveling power take-off process, the low-gear control switch ensures that a vehicle can take off power only at the low gear; and in the stop power take-off process, the vehicle is enabled to be at the neutral position by the stop switch and the low-gear control switch is closed to conduct the power take-off electromagnetic valve so as to carry out stop power take-off. By the design, not only the sudden hoisting phenomenon can be avoided, but also traveling power take-off and stop power take-off can be safely carried out.
Description
Technical field
The present invention relates to a kind of power takeoff device control system of dumping car, the power takeoff electric-control system that the two H particularly relating to a kind of power taking of driving a vehicle handle and using method thereof, be specifically applicable to avoid unexpected lifting phenomenon, and can the driving power taking of safety, force taking of parking.
Background technology
At present, domestic normal generation dumping car is unexpected automatic lifting in motion, so that the phenomenon of clobber, and this kind of phenomenon often causes serious traffic accident, causes huge economic loss, even car crash.Although numerous main engine plants and refitting factory all propose different preventive, all fail fundamentally to solve problems.
Chinese patent Authorization Notice No. is CN2837570Y, authorized announcement date is the air-control device that the utility model patent on November 15th, 2006 discloses a kind of hydraulic unloading mechanism of self-unloading vehicle, this air-control device comprises: air tank, maneuvering valve, hydraulic actuating cylinder, change-over valve, fuel tank, power takeoff cylinder and the gear type pump with check valve, this maneuvering valve is a three position four-way directional control valve, there is gas port A, gas port B, gas port P and gas port T, this gas port P is communicated with this air tank, this gas port T is in communication with the outside, this gas port A is communicated with this change-over valve, this gas port B is communicated with this power takeoff cylinder, and, this power takeoff cylinder, this gear type pump, this change-over valve, this hydraulic actuating cylinder and this fuel tank are connected by oil circuit, wherein, a safe manoeuvring valve is also provided with between this air tank and the gas port P of this maneuvering valve.Although this utility model improves its safety used by the mode arranging a safe manoeuvring valve between air tank, maneuvering valve, it still has following defect:
First, the reason of unexpected lifting phenomenon is summarized as maloperation by this utility model, unexpected lifting phenomenon when what thus it solved just drives a vehicle caused by maloperation, meanwhile, in order to solve maloperation problem, it also abandons driving power taking, force taking of parking can only be realized, thus, it does not fundamentally solve problems, just can not guarantee safe driving power taking yet;
Secondly, this utility model needs between air tank, maneuvering valve, arrange a safe manoeuvring valve, this safe manoeuvring valve not only can increase cost, and the integral layout of parts can be affected, in addition, it only plays a similar double insurance effect, maloperation when travelling can only be prevented, fundamentally can not solve unexpected lifting phenomenon, cost performance is not high, and practicality is lower.
Summary of the invention
The object of the invention is to overcome exist in prior art can not guarantee the defect that safe driving power taking, practicality are lower and problem, provide a kind of and can guarantee safe driving power taking, power takeoff electric-control system that two H of driven a vehicle power taking that practicality is higher handle and using method thereof.
For realizing above object, technical solution of the present invention is: the power takeoff electric-control system of two H manipulations of power taking of can driving a vehicle, comprise air tank and power takeoff, described air tank communicates with the admission port of power takeoff after power taking electromagnetic valve, the output shaft of power takeoff is connected with gear type pump, and on the coil of power taking electromagnetic valve, be in series with power taking switch;
Described power taking electromagnetic valve coil, power taking switch altogether circuit on be also in series with a low-grade location master cock;
Described air tank successively after electromagnetic valve for braking, meta cylinder with after double H valve gas circuit in the two H control system of odd-side be connected, and be in series with shut off cock on the coil of electromagnetic valve for braking.
The two H control system of described rear odd-side comprises double H valve and limiting valve;
Described air tank communicates through the admission port of electromagnetic valve for braking with meta cylinder, and the high-grade air extractor duct of meta cylinder communicates with double H valve admission port, and the low-grade air extractor duct of meta cylinder communicates with double H valve relief port, and double H valve air extractor duct communicates with air tank after limiting valve.
Described air tank communicates with the admission port of power takeoff successively after power taking electromagnetic valve, high-grade shielding valve, and the coil of high-grade shielding valve all communicates with low-grade air extractor duct, double H valve relief port.
The vehicle one that described power takeoff electric-control system is applied has five grades, is respectively 1 grade, 2 grades, 3 grades, 4 grades, 5 grades; Low-grade location in described low-grade location master cock refers to R shelves, 1 grade, 2 grades or neutral gear.
A using method for the power takeoff electric-control system of two H manipulations of above-mentioned power taking of driving a vehicle, described using method comprises the following steps:
Driving power taking step: first press power taking switch, again gear is transferred to low-grade location with closed low-grade location master cock, thus conducting power taking electromagnetic valve coil place circuit, the coil of power taking electromagnetic valve obtains electric, power taking electromagnetic valve is opened, now, pressurized air in air tank enters in the rod chamber of power takeoff control cylinder after power taking electromagnetic valve, the power take-off gear that pressurized air promotes power takeoff is meshed to make power takeoff capable with the power gear in odd-side after change-speed box, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff with drive hydraulic system principle, decline with in stop operating, thus realize driving power taking,
Force taking of parking step: first press shut off cock, electromagnetic valve for braking coil place circuit is switched on, the coil of electromagnetic valve for braking obtains electric, electromagnetic valve for braking is opened, now, pressurized air in air tank is successively through electromagnetic valve for braking, double H valve in the two H control system of rear odd-side is entered with mouth in odd-side after open slew device after meta cylinder, connection between transmission shaft, transmission shaft stops operating, vehicle is slack, vehicle is in neutral gear, low-grade location master cock closes, press power taking switch again, thus conducting power taking electromagnetic valve coil place circuit, the coil of power taking electromagnetic valve obtains electric, power taking electromagnetic valve is opened, now, pressurized air in air tank enters in the rod chamber of power takeoff control cylinder after power taking electromagnetic valve, the power take-off gear that pressurized air promotes power takeoff is meshed to make power takeoff capable with the power gear in odd-side after change-speed box, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff with drive hydraulic system principle, decline with in stop operating, thus realize force taking of parking.
Described low-grade location master cock is controlled closed by horizontal gear level.
Described air tank communicates with the admission port of power takeoff successively after power taking electromagnetic valve, high-grade shielding valve.
Compared with prior art, beneficial effect of the present invention is:
1, in the power takeoff electric-control system that the two H that the present invention can drive a vehicle power taking handle and using method thereof power taking electromagnetic valve coil, power taking switch altogether circuit on be in series with a low-grade location master cock, during use, only have low-grade location master cock, power taking switch closes simultaneously, just can open power taking electromagnetic valve with conducting power takeoff place gas circuit, effectively prevent the unexpected lifting phenomenon caused by power taking faulty switching; And this low-grade location master cock only could close when vehicle is positioned at low-grade location, and automobile can be avoided to be positioned at high tap position, during as change-speed box extension 4 or 5 gear, the automatic lifting phenomenon that the high oil pressure caused causes; In addition, this design solves unexpected lifting phenomenon on the basis maintaining driving power taking.Therefore, the present invention can not only avoid unexpected lifting phenomenon, and driving power taking that can be safe.
2, the air tank in the power takeoff electric-control system that the two H that the present invention can drive a vehicle power taking handle and using method thereof successively after electromagnetic valve for braking, meta cylinder with after double H valve gas circuit in odd-side pair H control system be connected, and shut off cock is in series with on the coil of electromagnetic valve for braking, during use, this design by shut off cock conducting electromagnetic valve for braking with the connection in odd-side after open slew device between mouth, transmission shaft, vehicle is made to be in neutral gear, and closed low-grade location master cock, thus realize parking, power taking synchronously, avoid the generation of unexpected lifting phenomenon.Therefore, the driving power taking that the present invention can not only be safe, and force taking of parking that can be safe.
3, be provided with between power taking electromagnetic valve and power takeoff admission port in the power takeoff electric-control system that the two H that the present invention can drive a vehicle power taking handle and using method thereof and high-gradely shield valve, this top grade shielding valve can not only mask top grade, make only to realize power taking of driving a vehicle in low-grade district, and power taking electromagnetic valve can be avoided to be communicated with, in case the unexpected lifting phenomenon caused long ventilatory conditions appears in power taking electromagnetic valve during because of fault with direct between air tank.Therefore, the present invention can effectively avoid vehicle to occur unexpected lifting phenomenon in motion.
4, in the power takeoff electric-control system that the two H that the present invention can drive a vehicle power taking handle and using method thereof by power taking electromagnetic valve coil, power taking switch altogether circuit on set up the mode of a low-grade location master cock, achieve safe driving power taking and force taking of parking, and, if arrange high-grade shielding valve between power taking electromagnetic valve, power takeoff admission port, then safety is stronger, in addition, low-grade location master cock, top grade shield valve, and not only price is lower, and volume is little, the integral layout of parts can not be affected, cost performance is higher, and practicality is stronger.Therefore, the present invention can not only the driving power taking of safety and force taking of parking, and practicality is stronger.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: air tank 1, power takeoff 2, power taking electromagnetic valve 3, power taking switch 4, low-grade location master cock 5, horizontal gear level 51, electromagnetic valve for braking 6, meta cylinder 7, high-grade air extractor duct 71, low-grade air extractor duct 72, double H valve 8, double H valve admission port 81, double H valve air extractor duct 82, double H valve relief port 83, shut off cock 9, limiting valve 11, high-grade shielding valve 13, the two H control system 14 of rear odd-side.
Detailed description of the invention
Illustrate that the present invention is further detailed explanation with detailed description of the invention below in conjunction with accompanying drawing.
See Fig. 1, the power takeoff electric-control system that two H that can drive a vehicle power taking handle, comprise air tank 1 and power takeoff 2, described air tank 1 communicates with the admission port of power takeoff 2 after power taking electromagnetic valve 3, the output shaft of power takeoff 2 is connected with gear type pump, and on the coil of power taking electromagnetic valve 3, be in series with power taking switch 4;
Described power taking electromagnetic valve 3 coil, power taking switch 4 altogether circuit on be also in series with a low-grade location master cock 5;
Described air tank 1 successively after electromagnetic valve for braking 6, meta cylinder 7 with after double H valve 8 gas circuit in the two H control system 14 of odd-side be connected, and be in series with shut off cock 9 on the coil of electromagnetic valve for braking 6.
The two H control system 14 of described rear odd-side comprises double H valve 8 and limiting valve 11;
Described air tank 1 communicates through the admission port of electromagnetic valve for braking 6 with meta cylinder 7, the high-grade air extractor duct 71 of meta cylinder 7 communicates with double H valve admission port 81, the low-grade air extractor duct 72 of meta cylinder 7 communicates with double H valve relief port 83, and double H valve air extractor duct 82 communicates with air tank 1 after limiting valve 11.
Described air tank 1 communicates with the admission port of power takeoff 2 successively after power taking electromagnetic valve 3, high-grade shielding valve 13, and the coil of high-grade shielding valve 13 all communicates with low-grade air extractor duct 72, double H valve relief port 83.
The vehicle one that described power takeoff electric-control system is applied has five grades, is respectively 1 grade, 2 grades, 3 grades, 4 grades, 5 grades; Low-grade location in described low-grade location master cock 5 refers to R shelves, 1 grade, 2 grades or neutral gear.
A using method for the power takeoff electric-control system of two H manipulations of above-mentioned power taking of driving a vehicle, described using method comprises the following steps:
Driving power taking step: first press power taking switch 4, again gear is transferred to low-grade location with closed low-grade location master cock 5, thus conducting power taking electromagnetic valve 3 coil place circuit, the coil of power taking electromagnetic valve 3 obtains electric, power taking electromagnetic valve 3 is opened, now, pressurized air in air tank 1 enters in the rod chamber of power takeoff 2 control cylinder after power taking electromagnetic valve 3, the power take-off gear that pressurized air promotes power takeoff 2 is meshed with the power gear in odd-side after change-speed box to make power takeoff 2 capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff 2 with drive hydraulic system principle, decline with in stop operating, thus realize driving power taking,
Force taking of parking step: first press shut off cock 9, electromagnetic valve for braking 6 coil place circuit is switched on, the coil of electromagnetic valve for braking 6 obtains electric, electromagnetic valve for braking 6 is opened, now, pressurized air in air tank 1 is successively through electromagnetic valve for braking 6, double H valve 8 in the two H control system 14 of rear odd-side is entered with mouth in odd-side after open slew device after meta cylinder 7, connection between transmission shaft, transmission shaft stops operating, vehicle is slack, vehicle is in neutral gear, low-grade location master cock 5 closes, press power taking switch 4 again, thus conducting power taking electromagnetic valve 3 coil place circuit, the coil of power taking electromagnetic valve 3 obtains electric, power taking electromagnetic valve 3 is opened, now, pressurized air in air tank 1 enters in the rod chamber of power takeoff 2 control cylinder after power taking electromagnetic valve 3, the power take-off gear that pressurized air promotes power takeoff 2 is meshed with the power gear in odd-side after change-speed box to make power takeoff 2 capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff 2 with drive hydraulic system principle, decline with in stop operating, thus realize force taking of parking.
Described low-grade location master cock 5 is controlled to close by horizontal gear level 51.
Described air tank 1 communicates with the admission port of power takeoff 2 successively after power taking electromagnetic valve 3, high-grade shielding valve 13.
Principle of the present invention is described as follows:
Domesticly engineering dump truck automatic lifting when running at high speed often can occur, the phenomenon of clobber, it, often along with serious traffic accident, even car crash, causes tremendous economic to lose.Described fault car many couplings two layshaft gearbox, from the power taking of rear odd-side tween drive shaft, and be responsible for controlling power taking electromagnetic valve from the power takeoff device control system of rear odd-side tween drive shaft power taking many employings power taking switch, to realize power taking of driving a vehicle, and each gear of vehicle can realize driving power taking function.But there is potential safety hazard in this kind of system:
The hydraulic efficiency pressure system of this system support (control vehicle lifting, decline, in stop the hydraulic efficiency pressure system that operates) in hydraulic tubing longer and latus rectum is less again, when power takeoff rotating speed is higher (when change-speed box hangs 4,5 gear), even if lifting control handle is in lowering position, oil cylinder also can jack-up automatically, thus there is unexpected lifting phenomenon, potential safety hazard is very large; In addition, the power takeoff electromagnetic valve in existing control system, air tank directly connect, once power takeoff electromagnetic valve et out of order, as power taking switch crosstalk etc., power takeoff just there will be long ventilatory conditions, now, power takeoff will automatic operation, the easily unexpected lifting phenomenon of generation.
For above defect, the solution announced is a lot, but all can not guarantee safe driving power taking, force taking of parking, even some technical scheme with power taking of abandoning driving a vehicle for cost and avoid the generation of unexpected lifting phenomenon, and the present invention solves above defect from the control of propulsion source (power takeoff), the generation of unexpected lifting phenomenon can not only be avoided, and can safety driving power taking, force taking of parking, cost performance is very high, and practicality is very strong.
Embodiment 1:
A kind of power takeoff electric-control system of two H manipulations of power taking of driving a vehicle, comprise air tank 1, power takeoff 2, power taking electromagnetic valve 3, power taking switch 4, low-grade location master cock 5, electromagnetic valve for braking 6, meta cylinder 7, shut off cock 9, high-grade shielding valve 13 H control system 14 two with rear odd-side, the two H control system 14 of this rear odd-side comprises double H valve 8 and limiting valve 11;
Described air tank 1 communicates with the admission port of power takeoff 2 (admission port of power takeoff 2 communicates with the rod chamber of the control cylinder of power takeoff 2) successively after power taking electromagnetic valve 3, high-grade shielding valve 13, and the output shaft of power takeoff 2 is connected with gear type pump; Described air tank 1 communicates through the admission port of electromagnetic valve for braking 6 with meta cylinder 7, the high-grade air extractor duct 71 of meta cylinder 7 communicates with double H valve admission port 81, the low-grade air extractor duct 72 of meta cylinder 7 communicates with double H valve relief port 83, and double H valve air extractor duct 82 communicates with air tank 1 after limiting valve 11;
Described power taking electromagnetic valve 3 coil is in series with a power taking switch 4, low-grade location master cock 5; The coil of described electromagnetic valve for braking 6 is in series with a shut off cock 9; The coil of described top grade shielding valve 13 all communicates with low-grade air extractor duct 72, double H valve relief port 83 (the high-grade folding shielding valve 13 leans on the gas of low-grade air extractor duct 72 to control, and has during gas and connects, disconnect when dying by spring in pipeline);
The vehicle one that described power takeoff electric-control system is applied has five grades, is respectively 1 grade, 2 grades, 3 grades, 4 grades, 5 grades; Low-grade location in described low-grade location master cock 5 refers to R shelves, 1 grade, 2 grades or neutral gear.
A using method for the power takeoff electric-control system of two H manipulations of above-mentioned power taking of driving a vehicle, described using method comprises the following steps:
Driving power taking step: first press power taking switch 4, again gear is transferred to low-grade location to be controlled to close by horizontal gear level 51 with low-grade location master cock 5 described in closed low-grade location master cock 5(), thus conducting power taking electromagnetic valve 3 coil place circuit, the coil of power taking electromagnetic valve 3 obtains electric, power taking electromagnetic valve 3 is opened, now, pressurized air in air tank 1 is successively through power taking electromagnetic valve 3, enter in the rod chamber of power takeoff 2 control cylinder after high-grade shielding valve 13, the power take-off gear that pressurized air promotes power takeoff 2 is meshed with the power gear in odd-side after change-speed box to make power takeoff 2 capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff 2 with drive hydraulic system principle, decline with in stop operating, thus realize driving power taking,
Force taking of parking step: first press shut off cock 9, electromagnetic valve for braking 6 coil place circuit is switched on, the coil of electromagnetic valve for braking 6 obtains electric, electromagnetic valve for braking 6 is opened, now, pressurized air in air tank 1 is successively through electromagnetic valve for braking 6, double H valve 8 in the two H control system 14 of rear odd-side is entered with mouth in odd-side after open slew device after meta cylinder 7, connection between transmission shaft, transmission shaft stops operating, vehicle is slack, vehicle is in neutral gear, low-grade location master cock 5 closes, press power taking switch 4 again, thus conducting power taking electromagnetic valve 3 coil place circuit, the coil of power taking electromagnetic valve 3 obtains electric, power taking electromagnetic valve 3 is opened, now, pressurized air in air tank 1 is successively through power taking electromagnetic valve 3, enter in the rod chamber of power takeoff 2 control cylinder after high-grade shielding valve 13, the power take-off gear that pressurized air promotes power takeoff 2 is meshed with the power gear in odd-side after change-speed box to make power takeoff 2 capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff 2 with drive hydraulic system principle, decline with in stop operating, thus realize force taking of parking.
Claims (6)
1. the power takeoff electric-control system that two H that can drive a vehicle power taking handle, comprise air tank (1) and power takeoff (2), described air tank (1) communicates with the admission port of power takeoff (2) after power taking electromagnetic valve (3), the output shaft of power takeoff (2) is connected with gear type pump, and on the coil of power taking electromagnetic valve (3), be in series with power taking switch (4), it is characterized in that:
Described power taking electromagnetic valve (3) coil, power taking switch (4) altogether circuit on be also in series with a low-grade location master cock (5);
Double H valve (8) gas circuit of described air tank (1) successively after electromagnetic valve for braking (6), meta cylinder (7) in H control system (14) two with rear odd-side is connected, and on the coil of electromagnetic valve for braking (6), be in series with shut off cock (9);
The two H control system (14) of described rear odd-side comprises double H valve (8) and limiting valve (11);
Described air tank (1) communicates through the admission port of electromagnetic valve for braking (6) with meta cylinder (7), the high-grade air extractor duct (71) of meta cylinder (7) communicates with double H valve admission port (81), the low-grade air extractor duct (72) of meta cylinder (7) communicates with double H valve relief port (83), and double H valve air extractor duct (82) communicates with air tank (1) after limiting valve (11).
2. the power takeoff electric-control system of two H manipulations of power taking of driving a vehicle according to claim 1, is characterized in that:
Described air tank (1) communicates with the admission port of power takeoff (2) successively after power taking electromagnetic valve (3), high-grade shielding valve (13), and the coil of high-grade shielding valve (13) all communicates with low-grade air extractor duct (72), double H valve relief port (83).
3. the power takeoff electric-control system of two H manipulations of power taking of driving a vehicle according to claim 1 and 2, is characterized in that: the vehicle one that described power takeoff electric-control system is applied has five grades, is respectively 1 grade, 2 grades, 3 grades, 4 grades, 5 grades; Low-grade location in described low-grade location master cock (5) refers to R shelves, 1 grade, 2 grades or neutral gear.
4. a using method for the power takeoff electric-control system of two H manipulations of power taking of driving a vehicle according to claim 1, is characterized in that described using method comprises the following steps:
Driving power taking step: first press power taking switch (4), again gear is transferred to low-grade location with closed low-grade location master cock (5), thus conducting power taking electromagnetic valve (3) coil place circuit, the coil of power taking electromagnetic valve (3) obtains electric, power taking electromagnetic valve (3) is opened, now, pressurized air in air tank (1) enters in the rod chamber of power takeoff (2) control cylinder after power taking electromagnetic valve (3), the power take-off gear that pressurized air promotes power takeoff (2) is meshed with the power gear in odd-side after change-speed box to make power takeoff (2) capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff (2) with drive hydraulic system principle, decline with in stop operating, thus realize driving power taking,
Force taking of parking step: first press shut off cock (9), electromagnetic valve for braking (6) coil place circuit is switched on, the coil of electromagnetic valve for braking (6) obtains electric, electromagnetic valve for braking (6) is opened, now, pressurized air in air tank (1) is successively through electromagnetic valve for braking (6), double H valve (8) in the two H control system (14) of rear odd-side is entered with mouth in odd-side after open slew device after meta cylinder (7), connection between transmission shaft, transmission shaft stops operating, vehicle is slack, vehicle is in neutral gear, low-grade location master cock (5) closes, press power taking switch (4) again, thus conducting power taking electromagnetic valve (3) coil place circuit, the coil of power taking electromagnetic valve (3) obtains electric, power taking electromagnetic valve (3) is opened, now, pressurized air in air tank (1) enters in the rod chamber of power takeoff (2) control cylinder after power taking electromagnetic valve (3), the power take-off gear that pressurized air promotes power takeoff (2) is meshed with the power gear in odd-side after change-speed box to make power takeoff (2) capable, the lifting of vehicle is carried out in the output shaft driven gear pump running of capable power takeoff (2) with drive hydraulic system principle, decline with in stop operating, thus realize force taking of parking.
5. the using method of the power takeoff electric-control system of two H manipulations of a kind of power taking of driving a vehicle according to claim 4, is characterized in that: described low-grade location master cock (5) is controlled closed by horizontal gear level (51).
6. the using method of the power takeoff electric-control system of two H manipulations of a kind of power taking of driving a vehicle according to claim 4 or 5, is characterized in that: described air tank (1) communicates with the admission port of power takeoff (2) successively after power taking electromagnetic valve (3), high-grade shielding valve (13).
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| CN201310221867.5A CN103303140B (en) | 2013-06-06 | 2013-06-06 | Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system |
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| CN201310221867.5A CN103303140B (en) | 2013-06-06 | 2013-06-06 | Double-H operated power takeoff electrical control system capable of carrying out traveling power take-off and use method of electrical control system |
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| CN103303140B true CN103303140B (en) | 2015-06-24 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103692985B (en) * | 2013-12-30 | 2015-08-05 | 安徽江淮汽车股份有限公司 | A kind of auto switching electric system of vehicle |
| WO2017210891A1 (en) * | 2016-06-08 | 2017-12-14 | 徐州重型机械有限公司 | Power take-off control system and construction vehicle |
| CN108583278B (en) * | 2018-03-30 | 2023-05-05 | 东风商用车有限公司 | Power takeoff relay control system with clutch and application method thereof |
| CN108626389B (en) * | 2018-06-07 | 2023-11-14 | 陕西法士特汽车传动集团有限责任公司 | Rear power takeoff work protection system of commercial vehicle |
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| EP1038716A2 (en) * | 1999-03-25 | 2000-09-27 | Dana Corporation | Power take-off unit housing having intergral hydraulic manifold |
| CN201890147U (en) * | 2010-09-26 | 2011-07-06 | 北汽福田汽车股份有限公司 | Control system for power takeoff |
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