CN104842738A - Dual-channel hydraulic system for automobile active stabilizer bar - Google Patents
Dual-channel hydraulic system for automobile active stabilizer bar Download PDFInfo
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Abstract
The invention discloses a dual-channel hydraulic system for an automobile active stabilizer bar, which is characterized by comprising a pump, an oil tank, an integrated circuit, a front axle hydraulic motor and a rear axle hydraulic motor. The dual-channel hydraulic system comprises four operating states which are a stationary state, a straight driving state, a vehicle steering state and a failure state. The dual-channel hydraulic system disclosed by the invention can enable a vehicle to be more stable in performance in the driving process, especially when the vehicle makes a turn, and the comfort and the safety riding are better.
Description
Technical field
Patent of the present invention belongs to the field of car hydraulics, is a kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar specifically.
Background technology
At present, though common Panhard rod can suppress to roll, but the traveling comfort taken can have a great impact, and when speed is higher, and when turning to, vehicle degree is comparatively large, and vehicle has the danger of rollover, present stage, the inclination problem of vehicle is slowed down mainly through configuration high-performance vibration reduction device, but suppress to roll by the measure adding High Performance shock absorber, also can cause the negative effect of some, as: traveling comfort is deteriorated, wheel bounce can cause adhesive ability reduction etc. time excessive.
At present, the also prematurity of domestic automobile active stabilization pole technology, is in development phase, also not for the hydraulic efficiency pressure system of twin-channel automotive driving stabilizer bar.
Summary of the invention
The present invention in order to overcome prior art exist weak point, a kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar is proposed, to making vehicle in the process of moving, especially turn time, performance is more stable, the traveling comfort taken and safety better.
The present invention is that technical solution problem adopts following technical scheme:
The feature of a kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar of the present invention is: described binary channel hydraulic efficiency pressure system comprises: integrated circuit, pump, fuel tank, propons HM Hydraulic Motor and back axle HM Hydraulic Motor;
Described integrated circuit comprises: propons proportional pressure control valve, back axle proportional pressure control valve, directional control valve, shutoff valve, the first check valve, the second check valve, propons pressure sensor, back axle pressure sensor, valve core position sensor, integrated circuit oil inlet, integrated circuit return opening, propons HM Hydraulic Motor oil inlet, propons HM Hydraulic Motor oil outlet, back axle HM Hydraulic Motor oil inlet, back axle HM Hydraulic Motor oil outlet;
Described binary channel hydraulic efficiency pressure system comprises four kinds of mode of operations, is respectively quiescence, straight travel state, Vehicular turn state and faulty condition.
The feature of the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar of the present invention is also:
When described binary channel hydraulic efficiency pressure system is quiescence, described binary channel hydraulic efficiency pressure system does not work; Described propons proportional pressure control valve and the power-off of back axle proportional pressure control valve, the also power-off of directional control valve and shutoff valve, hydraulic oil in described fuel tank feeds the oil inlet of described integrated circuit by described pump, flow into the oil-feed P mouth of described shutoff valve, and after flowing out from the fuel-displaced T mouth of described shutoff valve, return opening through described integrated circuit flows into described fuel tank, thus forms the oil circuit of described binary channel hydraulic efficiency pressure system integrated circuit when quiescence.
When described binary channel hydraulic efficiency pressure system is straight travel state, and when the speed of a motor vehicle is less than akm/h, 3≤a≤10; Described binary channel hydraulic efficiency pressure system is not activated, propons proportional pressure control valve and back axle proportional pressure control valve and directional control valve 3 power-off, shutoff valve 4 power-off; Described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is less than akm/h time integrated circuit 1 the oil circuit of oil circuit and the described binary channel hydraulic efficiency pressure system integrated circuit 1 when quiescence identical;
When the speed of a motor vehicle is greater than akm/h and is less than bkm/h, 15≤b≤25; Described binary channel hydraulic efficiency pressure system is activated, propons proportional pressure control valve and back axle proportional pressure control valve and directional control valve power-off, and shutoff valve is energized;
Hydraulic oil in described fuel tank feeds the oil inlet of described integrated circuit by described pump, flows into the oil-feed P mouth of described shutoff valve, and forms two oil circuits after the oil outlet of described shutoff valve flows out;
Article one, oil circuit is by the oil-feed P mouth of described directional control valve, and the outflow of oil outlet from described directional control valve, flow into after described propons HM Hydraulic Motor oil inlet flows through described propons HM Hydraulic Motor, flow out from described propons HM Hydraulic Motor oil outlet, and the fuel-displaced B mouth of inflow direction control cock, flowed out by the oil return T mouth of described directional control valve, and enter the fuel-displaced B mouth of described shutoff valve, after flowing out from the oil return T mouth of described shutoff valve, the return opening through described integrated circuit flows into described fuel tank;
Another oil circuit is by the oil-feed P1 mouth of described directional control valve, flow out from the oil outlet A1 of described directional control valve, described back axle HM Hydraulic Motor is flowed through after flowing into described back axle HM Hydraulic Motor oil inlet, and after flowing out from back axle HM Hydraulic Motor oil outlet, flow into the fuel-displaced B1 mouth of described directional control valve, by the outflow of the oil return T1 mouth of described directional control valve, and enter the oil outlet of described shutoff valve, after flowing out from the oil return T mouth of described shutoff valve, return opening through described integrated circuit flows into described fuel tank, thus formed described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit two oil circuits,
When the speed of a motor vehicle is more than or equal to bkm/h, described binary channel hydraulic efficiency pressure system reaches maximum effect state, described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is more than or equal to bkm/h time two oil circuits and the described binary channel hydraulic efficiency pressure system of integrated time 1 at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit two oil circuits identical;
When described binary channel hydraulic efficiency pressure system is steering state, described binary channel hydraulic work system, propons proportional pressure control valve and the energising of back axle proportional pressure control valve, directional control valve is energized, and shutoff valve is also energized;
Hydraulic oil in described fuel tank feeds the oil inlet of described integrated circuit by described pump, flows into the oil-feed P mouth of described shutoff valve, and forms two oil circuits after the fuel-displaced B mouth of described shutoff valve flows out;
Article one, oil circuit is by the oil-feed P mouth of described directional control valve, flow out from the fuel-displaced B mouth of described directional control valve, after flowing into described propons HM Hydraulic Motor oil outlet, flow through described propons HM Hydraulic Motor, and after flowing out from propons HM Hydraulic Motor oil inlet, the fuel-displaced A mouth of inflow direction control cock, flowed out by the oil return T mouth of described directional control valve, and enter the fuel-displaced B mouth of shutoff valve, after flowing out from the oil return T mouth of described shutoff valve, the return opening through described integrated circuit flows into described fuel tank;
Another oil circuit is by the oil-feed P1 mouth of described directional control valve, flow out from the fuel-displaced B1 mouth of described directional control valve, after flowing into described back axle HM Hydraulic Motor oil outlet, flow through described back axle HM Hydraulic Motor, and after flowing out from back axle HM Hydraulic Motor oil inlet, the fuel-displaced A1 mouth of inflow direction control cock, flowed out by the oil return T1 mouth of described directional control valve, and enter the fuel-displaced B mouth of shutoff valve, after flowing out from the oil return T mouth of described shutoff valve, the return opening through described integrated circuit flows into described fuel tank; Thus form two oil circuits of described binary channel hydraulic efficiency pressure system integrated circuit when steering state.
When described binary channel hydraulic efficiency pressure system is faulty condition, propons proportional pressure control valve and back axle proportional pressure control valve and directional control valve power-off, simultaneously shutoff valve power-off; When described binary channel hydraulic efficiency pressure system is nonserviceabled, the oil circuit of oil circuit and the described binary channel hydraulic efficiency pressure system integrated circuit when quiescence of integrated circuit is identical.
Described binary channel hydraulic efficiency pressure system is when operation pressure is low, hydraulic oil in described fuel tank flows into the oil inlet of described first check valve by described integrated circuit mouth, flow out from the oil outlet of described first check valve again, and flow into described propons HM Hydraulic Motor oil inlet, thus the gas of discharging in described propons HM Hydraulic Motor, form the first cavitation-preventive loop;
Simultaneously, hydraulic oil in described fuel tank flows into the oil inlet of the second check valve by described integrated circuit return opening, flow out from the oil outlet of described second check valve again, and flow into described propons HM Hydraulic Motor oil inlet, thus the gas of discharging in described propons HM Hydraulic Motor, form the second cavitation-preventive loop.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention is when automobile occurs to roll, can by the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar, produce the bank moment of opposing vehicle when turning to, make vehicle when turning to, the angle of roll of vehicle body is in the scope required, and the size of the bank moment of opposing vehicle can change, degree is rolled with the difference adapting to vehicle body, thus it is more safe to make vehicle travel, driver vehicle can not produce because of body roll and not accommodate fatigue, and passenger's travelling comfort increases.
2, the present invention is by adopting integrated circuit, overcome the defect that existing hydraulic circuit is complicated, the easy leak point of fluid is many, reliability is low, automotive driving stabilizer bar hydraulic efficiency pressure system is made to have compact conformation, the advantage such as simple, easy to maintenance, thus improve reliability, the integrated level of automotive driving stabilizer bar hydraulic efficiency pressure system, also significantly reduce the leakage of fluid.
3, the directional control valve that the present invention adopts is pile-up valve, overcome active stabilizer bar propons active stabilizer bar and bridge active stabilizer bar in steering procedure and turn to nonsynchronous problem, thus make the hydraulic work system of propons active stabilizer bar and bridge active stabilizer bar more reliable and stable, driver is safer, and passenger takes more comfortable.
4, the present invention is avoided in HM Hydraulic Motor by employing first check valve and the second check valve and occurs cavitation erosion, be specially in binary channel hydraulic efficiency pressure system when operation pressure is low, the a small amount of air contained in hydraulic oil can from oil out, bubbles burst can make HM Hydraulic Motor be cavitated, produce noise, a large amount of air enters in hydraulic oil, cavitation erosion will be made to aggravate, motor operations is unstable, work efficiency reduces, now, first check valve and the second check valve can again from fuel tank oil suctions, cavitation erosion is there is to avoid described propons HM Hydraulic Motor and back axle HM Hydraulic Motor, thus improve the stability of the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar, reliability and life-span.
Accompanying drawing explanation
Hydraulic system principle figure when Fig. 1 is quiescence of the present invention;
Hydraulic system principle figure when Fig. 2 is straight travel state of the present invention;
Hydraulic system principle figure when Fig. 3 is steering state of the present invention;
Hydraulic system principle figure when Fig. 4 is faulty condition of the present invention;
Number in the figure: 1 integrated valve block; 2a propons proportional pressure control valve; 2b back axle proportional pressure control valve; 3 directional control valves; 4 shutoff valves; 5a first check valve; 5b second check valve; 6a propons pressure sensor; 6b back axle pressure sensor; 7 valve core position sensors; 8a valve block oil inlet; 8b valve block return opening; 9a propons HM Hydraulic Motor oil inlet; 9b propons HM Hydraulic Motor oil outlet; 10a back axle HM Hydraulic Motor oil inlet; 10b back axle HM Hydraulic Motor oil outlet; 11 pumps; 12 fuel tanks; 13 propons HM Hydraulic Motor; 14 back axle HM Hydraulic Motor.
Detailed description of the invention
In the present embodiment, a kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar comprises: integrated circuit 1, pump 11, fuel tank 12, propons HM Hydraulic Motor 13 and back axle HM Hydraulic Motor 14;
Integrated circuit 1 comprises: propons proportional pressure control valve 2a, back axle proportional pressure control valve 2b, directional control valve 3, shutoff valve 4, first check valve 5a, the second check valve 5b, propons pressure sensor 6a, back axle pressure sensor 6b, valve core position sensor 7, integrated circuit oil inlet 8a, integrated circuit return opening 8b, propons HM Hydraulic Motor oil inlet 9a, propons HM Hydraulic Motor oil outlet 9b, back axle HM Hydraulic Motor oil inlet 10a, back axle HM Hydraulic Motor oil outlet 10b;
Binary channel hydraulic efficiency pressure system comprises four kinds of mode of operations, is respectively quiescence, straight travel state, Vehicular turn state and faulty condition.
When the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar is quiescence, as shown in Figure 1, binary channel hydraulic efficiency pressure system does not work hydraulic system principle figure; Even if vehicle has inclination on the road surface that vehicle is parked in inclination, automotive driving stabilizer bar hydraulic efficiency pressure system does not also work.Propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b power-off, directional control valve 3 and shutoff valve 4 all power-off, hydraulic oil in fuel tank 12 feeds the oil inlet 8a of integrated circuit 1 by pump 11, flow into the oil-feed P mouth of shutoff valve 4, and after flowing out from the fuel-displaced T mouth of shutoff valve 4, flow into fuel tank 12 through the return opening 8b of integrated circuit 1, thus form the oil circuit of binary channel hydraulic efficiency pressure system integrated circuit 1 when quiescence.
When the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar is straight travel state, hydraulic system principle figure as shown in Figure 2, when start the engine time, hydraulic oil will be transported in system by pump 11, the pressure of 3-5bar is set up in system, when its straight line travels, and when the speed of a motor vehicle is less than akm/h, 3≤a≤10; Preferably, a=5km/h; Binary channel hydraulic efficiency pressure system is not activated, propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b power-off, the yet all power-off of directional control valve 3 and shutoff valve 4; Binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is less than akm/h time integrated circuit 1 the oil circuit of oil circuit and the binary channel hydraulic efficiency pressure system integrated circuit 1 when quiescence identical;
When the speed of a motor vehicle is greater than akm/h and is less than bkm/h, 15≤b≤25; Preferably, b=20km/h; Binary channel hydraulic efficiency pressure system is activated, propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b and directional control valve 3 all power-off, and shutoff valve 4 is energized simultaneously; As long as straight-line travelling during vehicle, propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b all no powers;
Hydraulic oil in fuel tank 12 feeds the oil inlet 8a of integrated circuit 1 by pump 11, flows into the oil-feed P mouth of shutoff valve 4, and forms two oil circuits after the fuel-displaced A mouth of shutoff valve 4 flows out;
Article one, oil circuit is by the oil-feed P mouth of directional control valve 3, and the outflow of fuel-displaced A mouth from directional control valve 3, after inflow propons HM Hydraulic Motor oil inlet 9a flows through propons HM Hydraulic Motor 13, flow out from propons HM Hydraulic Motor oil outlet 9b, and the fuel-displaced B mouth of inflow direction control cock 3, flowed out by the oil return T mouth of directional control valve 3, and enter the fuel-displaced B mouth of shutoff valve 4, after flowing out from the oil return T mouth of shutoff valve 4, flow into fuel tank 12 through the return opening 8b of integrated circuit 1;
Another oil circuit is by the oil-feed P1 mouth of directional control valve 3, flow out from the fuel-displaced A1 mouth of directional control valve 3, back axle HM Hydraulic Motor 14 is flowed through after flowing into back axle HM Hydraulic Motor oil inlet 10a, and after flowing out from back axle HM Hydraulic Motor oil outlet 10b, the fuel-displaced B1 mouth of inflow direction control cock 3, by the outflow of the oil return T1 mouth of directional control valve 3, and enter the fuel-displaced B mouth of shutoff valve 4, after flowing out from the oil return T mouth of shutoff valve 4, fuel tank 12 is flowed into through the return opening 8b of integrated circuit 1, thus formed binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit 1 two oil circuits,
When the speed of a motor vehicle is more than or equal to bkm/h, binary channel hydraulic efficiency pressure system reaches maximum effect state, binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is more than or equal to bkm/h time integrated circuit 1 two oil circuits and binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit 1 two oil circuits identical;
When the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar is steering state, hydraulic system principle figure as shown in Figure 3, now, binary channel hydraulic work system, propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b is energized, and directional control valve 3 is energized, and shutoff valve 4 is also energized; When vehicle turns to, vehicle can produce transverse acceleration, can collect signal by lateral acceleration sensor, and lateral acceleration sensor signal will be transferred to dynamic Driving control unit.A signal is outputted to again propons proportional pressure control valve 2a and the back axle proportional pressure control valve 2b of propons and back axle by this control unit.Transverse acceleration is larger, and signal value electric current is larger, and the control electric current of valve is larger, and it is tighter that their are closed, while also correspondingly on stabilizer rod set up a higher pressure.
Hydraulic oil in fuel tank 12 feeds the oil inlet 8a of integrated circuit 1 by pump 11, flows into the oil-feed P mouth of shutoff valve 4, and forms two oil circuits after the fuel-displaced B mouth of shutoff valve 4 flows out;
Article one, oil circuit is by the oil-feed P mouth of directional control valve 3, flow out from the fuel-displaced B mouth of directional control valve 3, after flowing into propons HM Hydraulic Motor oil outlet 9b, flow through propons HM Hydraulic Motor 13, and after flowing out from propons HM Hydraulic Motor oil inlet 9a, the fuel-displaced A mouth of inflow direction control cock 3, flowed out by the oil return T mouth of directional control valve 3, and enter the fuel-displaced B mouth of shutoff valve 4, after flowing out from the oil return T mouth of shutoff valve 4, flow into fuel tank 12 through the return opening 8b of integrated circuit 1;
Another oil circuit is by the oil-feed P1 mouth of directional control valve 3, flow out from the fuel-displaced B1 mouth of directional control valve 3, after flowing into back axle HM Hydraulic Motor oil outlet 10b, flow through back axle HM Hydraulic Motor 14, and after flowing out from back axle HM Hydraulic Motor oil inlet 10a, the fuel-displaced A1 mouth of inflow direction control cock 3, flowed out by the oil return T1 mouth of directional control valve 3, and enter the fuel-displaced B mouth of shutoff valve 4, after flowing out from the oil return T mouth of shutoff valve 4, flow into fuel tank 12 through the return opening 8b of integrated circuit 1; Thus form two oil circuits of binary channel hydraulic efficiency pressure system integrated circuit 1 when steering state.
When the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar is faulty condition, hydraulic system principle figure as shown in Figure 4, propons proportional pressure control valve 2a and back axle proportional pressure control valve 2b and directional control valve 3 all power-off, shutoff valve 4 closes power-off by spring; When binary channel hydraulic efficiency pressure system is nonserviceabled, the oil circuit of oil circuit and the binary channel hydraulic efficiency pressure system integrated circuit 1 when quiescence of integrated circuit 1 is identical.
The binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar is when operation pressure is low, the a small amount of air contained in hydraulic oil can from oil out, bubbles burst can make HM Hydraulic Motor be cavitated, produce noise, a large amount of air enters in hydraulic oil, cavitation erosion will be made to aggravate, motor operations is unstable, work efficiency reduces, now, first check valve 5a, second check valve 5b can from fuel tank oil suction, cavitation erosion is there is to avoid propons HM Hydraulic Motor 13 and back axle HM Hydraulic Motor 14, particularly, as shown in Figure 3, hydraulic oil in fuel tank 12 flows into the oil inlet of the first check valve 5a by integrated circuit return opening 8b, flow out from the oil outlet of the first check valve 5a again, and flow into propons HM Hydraulic Motor oil inlet 9a, thus the gas of discharging in propons HM Hydraulic Motor 13, form the first cavitation-preventive loop,
Simultaneously, hydraulic oil in fuel tank 12 flows into the oil inlet of the second check valve 5b by integrated circuit return opening 8b, then flows out from the oil outlet of the second check valve 5b, and flows into propons HM Hydraulic Motor oil inlet 9a, thus the gas of discharging in propons HM Hydraulic Motor 13, form the second cavitation-preventive loop; Thus improve the stability of the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar, reliability and life-span.
Claims (6)
1. for a binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar, it is characterized in that: described binary channel hydraulic efficiency pressure system comprises: integrated circuit (1), pump (11), fuel tank (12), propons HM Hydraulic Motor (13) and back axle HM Hydraulic Motor (14);
Described integrated circuit (1) comprising: propons proportional pressure control valve (2a), back axle proportional pressure control valve (2b), directional control valve (3), shutoff valve (4), first check valve (5a), second check valve (5b), propons pressure sensor (6a), back axle pressure sensor (6b), valve core position sensor (7), integrated circuit oil inlet (8a), integrated circuit return opening (8b), propons HM Hydraulic Motor oil inlet (9a), propons HM Hydraulic Motor oil outlet (9b), back axle HM Hydraulic Motor oil inlet (10a), back axle HM Hydraulic Motor oil outlet (10b),
Described binary channel hydraulic efficiency pressure system comprises four kinds of mode of operations, is respectively quiescence, straight travel state, Vehicular turn state and faulty condition.
2. the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar according to claim 1, is characterized in that: when described binary channel hydraulic efficiency pressure system is quiescence, and described binary channel hydraulic efficiency pressure system does not work, described propons proportional pressure control valve (2a) and back axle proportional pressure control valve (2b) power-off, directional control valve (3) and shutoff valve (4) also power-off, hydraulic oil in described fuel tank (12) feeds the oil inlet (8a) of described integrated circuit (1) by described pump (11), flow into the oil-feed P mouth of described shutoff valve (4), and after flowing out from the fuel-displaced T mouth of described shutoff valve (4), return opening (8b) through described integrated circuit (1) flows into described fuel tank (12), thus form the oil circuit of described binary channel hydraulic efficiency pressure system integrated circuit (1) when quiescence.
3. the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar according to claim 1 and 2, is characterized in that: when described binary channel hydraulic efficiency pressure system is straight travel state, and when the speed of a motor vehicle is less than akm/h, 3≤a≤10; Described binary channel hydraulic efficiency pressure system is not activated, propons proportional pressure control valve (2a) and back axle proportional pressure control valve (2b) and directional control valve (3) power-off, shutoff valve (4) power-off; Described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is less than akm/h time integrated circuit (1) the oil circuit of oil circuit and the described binary channel hydraulic efficiency pressure system integrated circuit (1) when quiescence identical;
When the speed of a motor vehicle is greater than akm/h and is less than bkm/h, 15≤b≤25; Described binary channel hydraulic efficiency pressure system is activated, propons proportional pressure control valve (2a) and back axle proportional pressure control valve (2b) and directional control valve (3) power-off, and shutoff valve (4) is energized;
Hydraulic oil in described fuel tank (12) feeds the oil inlet (8a) of described integrated circuit (1) by described pump (11), flow into the oil-feed P mouth of described shutoff valve (4), and form two oil circuits after the fuel-displaced A mouth of described shutoff valve (4) flows out;
Article one, oil circuit is by the oil-feed P mouth of described directional control valve (3), and the outflow of fuel-displaced A mouth from described directional control valve (3), flow into after described propons HM Hydraulic Motor oil inlet (9a) flows through described propons HM Hydraulic Motor (13), flow out from described propons HM Hydraulic Motor oil outlet (9b), and the fuel-displaced B mouth of inflow direction control cock (3), flowed out by the oil return T mouth of described directional control valve (3), and enter the fuel-displaced B mouth of described shutoff valve (4), after flowing out from the oil return T mouth of described shutoff valve (4), return opening (8b) through described integrated circuit (1) flows into described fuel tank (12),
Another oil circuit is by the oil-feed P1 mouth of described directional control valve (3), flow out from the fuel-displaced A1 mouth of described directional control valve (3), described back axle HM Hydraulic Motor (14) is flowed through after flowing into described back axle HM Hydraulic Motor oil inlet (10a), and after flowing out from back axle HM Hydraulic Motor oil outlet (10b), flow into the fuel-displaced B1 mouth of described directional control valve (3), by the outflow of the oil return T1 mouth of described directional control valve (3), and enter the fuel-displaced B mouth of described shutoff valve (4), after flowing out from the oil return T mouth of described shutoff valve (4), return opening (8b) through described integrated circuit (1) flows into described fuel tank (12), thus formed described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit (1) two oil circuits,
When the speed of a motor vehicle is more than or equal to bkm/h, described binary channel hydraulic efficiency pressure system reaches maximum effect state, described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is more than or equal to bkm/h time integrated circuit (1) two oil circuits and described binary channel hydraulic efficiency pressure system at straight travel state and the speed of a motor vehicle is greater than akm/h and is less than bkm/h time integrated circuit (1) two oil circuits identical.
4. the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar according to claim 1, it is characterized in that: when described binary channel hydraulic efficiency pressure system is steering state, described binary channel hydraulic work system, propons proportional pressure control valve (2a) and back axle proportional pressure control valve (2b) energising, directional control valve (3) is energized, and shutoff valve (4) is also energized;
Hydraulic oil in described fuel tank (12) feeds the oil inlet (8a) of described integrated circuit (1) by described pump (11), flow into the oil-feed P mouth of described shutoff valve (4), and form two oil circuits after the fuel-displaced B mouth of described shutoff valve (4) flows out;
Article one, oil circuit is by the oil-feed P mouth of described directional control valve (3), flow out from the fuel-displaced B mouth of described directional control valve (3), after flowing into described propons HM Hydraulic Motor oil outlet (9b), flow through described propons HM Hydraulic Motor (13), and after flowing out from propons HM Hydraulic Motor oil inlet (9a), the fuel-displaced A mouth of inflow direction control cock (3), flowed out by the oil return T mouth of described directional control valve (3), and enter the fuel-displaced B mouth of shutoff valve (4), after flowing out from the oil return T mouth of described shutoff valve (4), return opening (8b) through described integrated circuit (1) flows into described fuel tank (12),
Another oil circuit is by the oil-feed P1 mouth of described directional control valve (3), flow out from the fuel-displaced B1 mouth of described directional control valve (3), after flowing into described back axle HM Hydraulic Motor oil outlet (10b), flow through described back axle HM Hydraulic Motor (14), and after flowing out from back axle HM Hydraulic Motor oil inlet (10a), the fuel-displaced A1 mouth of inflow direction control cock (3), flowed out by the oil return T1 mouth of described directional control valve (3), and enter the fuel-displaced B mouth of shutoff valve (4), after flowing out from the oil return T mouth of described shutoff valve (4), return opening (8b) through described integrated circuit (1) flows into described fuel tank (12), thus form two oil circuits of described binary channel hydraulic efficiency pressure system integrated circuit (1) when steering state.
5. the binary channel hydraulic efficiency pressure system of automotive driving stabilizer bar according to claim 1, it is characterized in that: when described binary channel hydraulic efficiency pressure system is faulty condition, propons proportional pressure control valve (2a) and back axle proportional pressure control valve (2b) and directional control valve (3) power-off, shutoff valve (4) power-off simultaneously; When described binary channel hydraulic efficiency pressure system is nonserviceabled, the oil circuit of oil circuit and the described binary channel hydraulic efficiency pressure system integrated circuit (1) when quiescence of integrated circuit (1) is identical.
6. the binary channel hydraulic efficiency pressure system of the automotive driving stabilizer bar according to claim 1 or 4, it is characterized in that: described binary channel hydraulic efficiency pressure system is when operation pressure is low, hydraulic oil in described fuel tank (12) flows into the oil inlet of described first check valve (5a) by described integrated circuit mouth (8b), flow out from the oil outlet of described first check valve (5a) again, and flow into described propons HM Hydraulic Motor oil inlet (9a), thus the gas of discharging in described propons HM Hydraulic Motor (13), form the first cavitation-preventive loop;
Simultaneously, hydraulic oil in described fuel tank (12) flows into the oil inlet of the second check valve (5b) by described integrated circuit return opening (8b), flow out from the oil outlet of described second check valve (5b) again, and flow into described propons HM Hydraulic Motor oil inlet (9a), thus the gas of discharging in described propons HM Hydraulic Motor (13), form the second cavitation-preventive loop.
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| CN106808954A (en) * | 2017-03-16 | 2017-06-09 | 南京理工大学 | Based on independent twin-channel active stabilizer bar hydraulic system |
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| CN101304892A (en) * | 2005-11-09 | 2008-11-12 | 荷兰应用科学研究会(Tno) | Hydraulic anti-roll system |
| CN104669974A (en) * | 2013-11-29 | 2015-06-03 | 爱信精机株式会社 | Vehicle height adjustment apparatus |
| CN204712818U (en) * | 2015-06-08 | 2015-10-21 | 浙江美力科技股份有限公司 | A kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4327044A1 (en) * | 1993-08-12 | 1995-02-16 | Rexroth Mannesmann Gmbh | Hydraulic stabiliser control |
| EP0992376A2 (en) * | 1998-10-08 | 2000-04-12 | Bayerische Motoren Werke Aktiengesellschaft | Stabilizing device for a vehicle |
| CN101304892A (en) * | 2005-11-09 | 2008-11-12 | 荷兰应用科学研究会(Tno) | Hydraulic anti-roll system |
| CN104669974A (en) * | 2013-11-29 | 2015-06-03 | 爱信精机株式会社 | Vehicle height adjustment apparatus |
| CN204712818U (en) * | 2015-06-08 | 2015-10-21 | 浙江美力科技股份有限公司 | A kind of binary channel hydraulic efficiency pressure system for automotive driving stabilizer bar |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106808954A (en) * | 2017-03-16 | 2017-06-09 | 南京理工大学 | Based on independent twin-channel active stabilizer bar hydraulic system |
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| Publication number | Publication date |
|---|---|
| CN104842738B (en) | 2017-01-11 |
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