CN103633813B - Split electromagnetic coupled clutch and the electric-controlled hydraulic steering be used as power with it - Google Patents
Split electromagnetic coupled clutch and the electric-controlled hydraulic steering be used as power with it Download PDFInfo
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Abstract
The invention discloses a kind of Split electromagnetic coupled clutch and with the electric-controlled hydraulic steering that it is used as power, belong to motor and motor turning control field.Split electromagnetic coupled clutch comprises mair motor and auxiliary-motor, and mair motor is fixed on stiff end, and mair motor is coaxially connected by rotor shaft with auxiliary-motor.Mair motor is equivalent to a double-rotor machine, and auxiliary-motor is direct current permanent magnetic brushless motor.The internal rotor of mair motor is connected by rotor shaft with the rotor of auxiliary-motor, forms coaxial rotor.Electric-controlled hydraulic steering comprises engine, steering pump, Split electromagnetic coupled clutch is connected with between engine and steering pump, its input is connected with engine, and output is connected with steering pump, and Split electromagnetic coupled clutch connects output control module.The problem of steering response difference when the invention solves hydraulic steering system high energy consumption, fixing assist characteristic and high speed; Improve the fuel economy of vehicle, control stability and driving safety.
Description
Technical field
The invention belongs to motor and motor turning control field, relate to a kind of Split electromagnetic coupled clutch and the electric-controlled hydraulic steering of the transmission that is used as power with Split electromagnetic coupled clutch.
Background technology
In recent years, along with the fast development of Chinese national economy and high-grade highway net, the production and marketing scale as the heavy vehicle of long-distance highway passenger transportation and logistics transportation main force equipment also increases fast, and energy-conservation, safety, the environmental issue of heavy vehicle come into one's own day by day.What the power-assisted steering of conventional heavy-duty vehicle adopted is hydraulic system, and this system utilizes engine-driven steering pump to produce pressure oil, and steering pump is connected with vehicle hydraulic tooth sector.Because engine is by belt Direct driver steering pump, as long as engine runs, it also continuously runs; Because hydraulic oil is always cyclically by tooth sector, cause continuously loss.When heavy vehicle travels under the higher speed of a motor vehicle, because steering pump rotating speed can not change causes road feel obviously to weaken with speed of a motor vehicle change, directly endanger control stability and the driving safety of vehicle.
Obtaining power steering with the scheme that the speed of a motor vehicle is variable is utilize an electro-hydraulic proportional valve, improves the steer ability that heavy vehicle is run at high speed, but fails to solve the high energy consumption problem of steering.This scheme can utilize bypass proportioning valve and stepping motor by-pass valve to obtain with the variable power-assisted of the speed of a motor vehicle; This scheme can also utilize multifunctional electromagnetic valves to regulate bypass flow, and then can change the compound mode of Controlling solenoid valve to change hydraulic booster according to the speed of a motor vehicle.Above-mentioned new departure is all that to realize power steering from the angle of hydraulic control loop bypass flow variable, thus improve the steering response of vehicle high-speed operating mode, but within the most of the time of vehicle operating, steering pump is in high speed rotating state always, the spill losses of hydraulic system and throttling loss cannot be avoided, and therefore can not reduce the energy consumption of steering.
Another acquisition provides the scheme of power-assisted to be utilize magnetic flow liquid shaft coupling as required, it is integrated between attached driving and hydraulic power-assisted steering pump, thus provides a kind of method directly to control steering pump rotating speed driven by the engine.Magnetic flow liquid shaft coupling provides continuously adjustable rotating speed by the torque controlling to be passed to by driving shaft power-assisted steering pump.The major defect of this scheme to produce slip power, and slip power produces thermal losses in shaft coupling, thus cause the efficiency of whole system not high.
In summary, the domestic and international hydraulic steering system for passenger car and light commercial vehicle has carried out a large amount of research work at present, and it is also little for the research of heavy vehicle hydraulic steering system, the various new steering being successfully applied to passenger car and light commercial vehicle can not meet the instructions for use of heavy vehicle, the novel steering system researched and developed for heavy vehicle both at home and abroad solve only the problem of the steering response difference of high-speed working condition, and the high energy consumption problem of steering not yet solves.Therefore, technical strategies must be adopted to seek applicable heavy vehicle feature and the theory-method-technology scheme of the novel steering system of energy organic coordination steer ability and power conservation requirement.
Summary of the invention
The present invention is directed to the problems referred to above that prior art exists, a kind of Split electromagnetic coupled clutch based on modified model electromagnetic slip clutches is provided, adopts this Split electromagnetic coupled clutch obviously can improve the fuel economy of heavy vehicle, control stability and driving safety.Compared with traditional electromagnetic slip clutches system, the efficiency of Split electromagnetic coupled clutch obtains to be improved significantly, and can obtain with the variable assist characteristic of engine speed simultaneously, thus improves control stability and the driving safety of vehicle.
The present invention is achieved through the following technical solutions:
Split electromagnetic coupled clutch, comprises mair motor and auxiliary-motor, and mair motor is fixed on stiff end, and mair motor is coaxially connected by rotor shaft with auxiliary-motor.
Mair motor is equivalent to a double-rotor machine, comprise external rotor, internal rotor and rotor shaft, external rotor is formed by the vibrating part that is fixedly connected with it and the bearing be connected between vibrating part and rotor shaft and internal rotor can the structure that rotates of rotor rotating shaft jointly, internal rotor is provided with internal rotor winding, external rotor is provided with the external rotor winding matched with described internal rotor winding.
Auxiliary-motor is direct current permanent magnetic brushless motor, comprise housing, stator, rotor and rotor shaft, stator is fixed on housing, housing maintains static, and rotor is fixedly connected with rotor shaft, and keeps concentric with stator, rotor is provided with permanent magnet, stator is provided with the stator winding matched with permanent magnet, and the internal rotor of mair motor is connected by rotor shaft with the rotor of auxiliary-motor, forms coaxial rotor.
As a further improvement on the present invention, described coaxial rotor is split-type structural, namely described rotor shaft comprises main rotor rotating shaft and secondary rotor shaft, rotor is connected by key and secondary rotor shaft links together rotates jointly, secondary rotor shaft is connected by bearing with housing, secondary rotor shaft can rotate relative to housing, and main rotor rotating shaft and secondary rotor shaft are mechanically connected by shaft coupling, forms the rotor shaft of segmentation structure.
As a further improvement on the present invention, described coaxial rotor is integral type structure, namely described rotor shaft is the rotating shaft of the integral type that major and minor motor shares, internal rotor is connected by key and rotating shaft links together rotates jointly, rotor is connected by key and rotating shaft links together rotates jointly, rotating shaft is connected with housing by bearing, and can rotate relative to housing.
As a further improvement on the present invention, the inner peripheral surface of described external rotor has external rotor teeth groove vertically, described external rotor winding is arranged in external rotor teeth groove, described internal rotor is hidden pole type internal rotor or salient pole type internal rotor, the outer circumference surface of described hidden pole type internal rotor has internal rotor teeth groove vertically, internal rotor winding is arranged in internal rotor teeth groove, described internal rotor winding and external rotor form flux structure radially, the outer circumference surface of described salient pole type internal rotor is provided with the magnetic pole of protrusion vertically, and internal rotor winding is concentrated and is placed on the magnetic pole of protrusion.
As a further improvement on the present invention, the inner peripheral surface of described stator has stator teeth groove vertically, and described stator winding is arranged in stator teeth groove, and described epitrochanterian permanent magnet and stator form flux structure radially.
As a further improvement on the present invention, structure that is that the structure that described internal rotor can make 4 poles also can make 6 poles according to corresponding work requirements or more multipole.
With the electric-controlled hydraulic steering that above-mentioned Split electromagnetic coupled clutch is used as power, comprise engine, steering oil, rotary valve, steering gear, power cylinder and steering wheel, described Split electromagnetic coupled clutch is connected with between engine and steering pump, the input of Split electromagnetic coupled clutch is connected with engine with belt by belt pulley, output is connected with steering pump, and described Split electromagnetic coupled clutch is also connected with output control module.
Further, described output control module comprises the first sensor for detecting external rotor rotating speed, for detecting the second transducer of coaxial rotor rotating speed, the first inverter be connected with external rotor winding, the second inverter be connected with stator winding, the motor control unit of storage battery and control internal rotor winding and stator winding, motor control unit receives the tach signal from first sensor and the second transducer, receive the speed of a motor vehicle simultaneously, steering wheel angle, steering-wheel torque, the signals such as brake pedal position, produce suitable electric current and be supplied to internal rotor winding and suitable voltage is supplied to stator winding, thus variable steering pump rotating speed and variable power steering are provided.
The invention has the beneficial effects as follows:
Split electromagnetic coupled clutch of the present invention has good compatibility for traditional hydraulic power-assisted steering, as long as because this system integration between engine and steering pump, again the such as speed of a motor vehicle, steering wheel angle, steering-wheel torque, brake pedal position etc. signal is inputed to motor control unit, for generation of the voltage led to the electric current of magnet exciting coil and stator winding, thus change steering pump rotating speed, reach the object of fuel economy, control stability and the driving safety improving heavy vehicle.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of Split electromagnetic coupled clutch in hydraulic power-assisted steering;
Fig. 2 is Split electromagnetic coupled clutch principle schematic;
Fig. 3 is the structural representation of the Split electromagnetic coupled clutch with segmented rotating shaft;
Fig. 4 is the structural representation of the Split electromagnetic coupled clutch with integral type rotating shaft;
Fig. 5 is the structural representation of the mair motor with hidden pole type magnetic pole;
Fig. 6 is the structural representation of the mair motor with salient pole type magnetic pole;
Fig. 7 is the structural representation of the auxiliary-motor with surperficial convex type permanent magnet;
Fig. 8 is the structural representation of the auxiliary-motor with surface embedded type permanent magnet;
In figure: 1, engine; 2, belt pulley; 3, belt; 4, external rotor; 041, external rotor winding; 042, external rotor teeth groove; 043, external rotor is unshakable in one's determination; 5, coaxial rotor; 051, internal rotor; 0511, internal rotor winding; 0512, internal rotor teeth groove; 0513, internal rotor is unshakable in one's determination; 0514, main rotor rotating shaft; 052, rotor; 0521, permanent magnet; 0522, rotor core; 0523, secondary rotor shaft; 053, shaft coupling; 054, rotating shaft; 6, stator; 061, stator winding; 062, stator teeth groove; 063, stator core; 7, housing; 8, steering pump; 9, the second transducer; 10, output control module; 101, the second inverter; 102, motor control unit; 103, storage battery; 104, the first inverter; 11, first sensor; 12, bearing; 13, stiff end; 14, the first vibrating part; 15, fastening bolt; 16, the second vibrating part; 21, mair motor; 22, auxiliary-motor.
Embodiment
Be below specific embodiments of the invention, and by reference to the accompanying drawings technical scheme of the present invention be further described, but the present invention is not limited to these embodiments.
As shown in Figure 1, 2 for Split electromagnetic coupled clutch is applied to specific embodiment in hydraulic power-assisted steering, the mair motor 21 of Split electromagnetic coupled clutch is connected with the belt pulley 2 on engine 1 output shaft by belt 3, mair motor 21 and auxiliary-motor 22 are mechanically connected, and auxiliary-motor 22 is connected with hydraulic pump 8 machinery.External rotor winding 041 is drawn by brush and is connected on the first inverter 104, first inverter 104 is electrically connected with storage battery 103 and motor control unit 102 simultaneously, motor control unit 102 output current is to internal rotor winding 0511, and be electrically connected with the second inverter 101, the second inverter 101 is connected with stator winding 061.Motor control unit 102 receives the tach signal from first sensor 11 and the second transducer 9, receive the speed of a motor vehicle, steering wheel angle, steering-wheel torque, brake pedal position etc. signal simultaneously, produce suitable electric current and be supplied to internal rotor winding 0511 and stator winding 061, thus variable steering pump rotating speed and variable power steering can be provided.
As shown in Figure 3, the Split electromagnetic coupled clutch with segmented rotating shaft comprises major and minor motor two motors, and mair motor 21 comprises external rotor 4, internal rotor 051 and the first vibrating part 14, second vibrating part 16.External rotor 4 forms concentric rotatable structure by the first vibrating part 14 and the second vibrating part 16 with internal rotor 051, external rotor is connected by fastening bolt 15 with vibrating part, by bearing 12, external rotor 4 relatively can rotate with internal rotor 051 and remain on concentric state, and mair motor 21 is fixed on stiff end 13, internal rotor 051 is connected by key and internal rotor rotating shaft 0514 links together rotates jointly.Auxiliary-motor 22 comprises housing 7, stator 6 and rotor 052, stator 6 is fixed on housing 7 and also keeps maintaining static, rotor 052 keeps concentric with stator 6, on rotor 052, device has permanent magnet 0521, rotor 052 is connected by key and rotor shaft 0523 links together rotates jointly, rotor shaft 0523 can be rotated with housing 7 relatively by bearing 12, and internal rotor rotating shaft 0514 is mechanically coupled together by shaft coupling 053 with rotor shaft 0523, thus forms the rotating shaft of segmentation structure.
As shown in Figure 4, the Split electromagnetic coupled clutch with integral type rotating shaft comprises major and minor motor two motors, and mair motor 21 comprises housing 7, external rotor 4, internal rotor 051, first vibrating part 14, second vibrating part 16 and rotating shaft 054.External rotor 4 forms concentric rotatable structure by the first vibrating part 14 and the second vibrating part 16 with internal rotor 051, by bearing 12, external rotor 4 relatively can rotate with internal rotor 051 and remain on concentric state, and mair motor 21 is fixed on housing 7, internal rotor 051 is connected by key and rotating shaft 054 links together rotates jointly.Auxiliary-motor comprises housing 7, stator 6 and rotor 052, stator 6 is fixed on housing 7 and also keeps maintaining static, rotor 052 and stator keep concentric, on rotor 052, device has permanent magnet 0521, rotor 052 is connected by key and rotating shaft 054 links together rotates jointly, and rotating shaft 054 can be rotated with housing 7 relatively by bearing 12.Rotating shaft 054 is that major and minor motor shares, and is made of one formula structure.
As shown in Figure 5,6, the mair motor of external rotor 4 and internal rotor 051 composition.As shown in Figure 5, the internal rotor of mair motor makes hidden pole type inner rotor core, and be made up of internal rotor winding 0511, internal rotor teeth groove 0512 and internal rotor iron core 0513, hidden pole type internal rotor is made cylindrical, and air gap is even; The internal rotor of the mair motor shown in Fig. 6 makes salient pole type inner rotor core, forms by by internal rotor winding 0511 and internal rotor iron core 0513; The external rotor of mair motor is all made up of external rotor winding 041, external rotor teeth groove 042 and external rotor iron core 043.
As shown in Figure 7,8, the auxiliary-motor of stator 6 and rotor 052 composition.As shown in Figure 7, the permanent magnet 0521 on the rotor 052 of auxiliary-motor is surperficial convex type, is made up of permanent magnet 0521 and rotor core 0522; As shown in Figure 8, the permanent magnet 0521 on the rotor 052 of auxiliary-motor is surface embedded type, is made up of permanent magnet 0521 and rotor core 0522; The stator of auxiliary-motor is all made up of stator winding 061, stator teeth groove 062, stator core 063.The position of external rotor iron core 043, internal rotor iron core 0513 as shown in Figure 5 and Figure 6; The position of rotor core 0522, stator core 063 is as shown in Fig. 7 and Fig. 8.
The control method that the present invention is total to split type electromagnetic coupled clutch is as follows:
Split electromagnetic coupled clutch operating condition one of the present invention, for steering situation, is mainly divided into engine idle steering situation and high speed steering situation.Under engine idle steering situation, the frequency of mair motor 21 is determined by engine 1 rotating speed and steering pump 8 pump shaft rotating speed, at this moment motor control unit 102 leads to the exciting current of internal rotor winding 0511 by regulating and leads to the voltage of stator winding 061, makes mair motor 21 torque and auxiliary-motor 22 torque acting in conjunction produce enough power-assisteds to meet the requirement of power steering.Under high speed steering situation, motor control unit 102 by controlling to lead to internal rotor winding 0511 exciting current and leading to and produce enough power-assisteds to the voltage of stator winding 061 and be supplied to steering pump 8, thus can have good ease of steering equally.
Split electromagnetic coupled clutch operating condition two of the present invention, under the operating mode of straight-line travelling, now, we should reduce rotating speed and the power steering of steering pump 8, and make power steering be in a suitable position, so both can improve fuel economy widely and steering can be made to have good road feel, improving driving safety.To achieve the above object, we reduce to lead to the exciting current of internal rotor winding 0511 by motor control unit 102, the electromagnetic torque of mair motor 21 is made to be not enough to drive steering pump 8, now, because required power-assisted is less, we can be provided the power steering of half separately by mair motor 21 and auxiliary-motor 22, mair motor 21 uses as generator simultaneously, so just can achieve the above object.
In sum, a kind of Split electromagnetic coupled clutch of the present invention, is made up of coaxial major and minor motor.Mair motor is follow-on electromagnetic slip clutches, the armature of traditional electromagnetic slip clutches is made the structure that can embed three-phase windings, and be referred to as external rotor, external rotor excircle makes dentation simultaneously, for forming pulley drive with engine, internal rotor makes hidden pole type magnetic pole or salient pole type magnetic pole.Auxiliary-motor is direct current permanent magnetic brushless motor, and stator installing three-phase windings, device permanent magnet on rotor, permanent magnet has two kinds of device modes, and one is surperficial convex type, and one is surface embedded type.The rotating shaft of major and minor motor is linked together by shaft coupling, or both rotating shaft is made of one formula.
The mair motor of this split type electromagnetic coupled clutch is made up of inner and outer Rotator, and external rotor is power shaft, and internal rotor is output shaft.Auxiliary-motor is made up of stators and rotators, and rotor is as output shaft.The output shaft that the internal rotor of mair motor and the rotor of auxiliary-motor are rigidly connected as whole system by rotor axis mechanical is connected with steering pump.In mair motor, the magnetic line of force that internal rotor magnet exciting coil produces is from the N pole of magnetic pole, through the air gap external rotor and internal rotor, along the external rotor part that the S of the yoke arrival magnetic pole of external rotor is extremely corresponding, again through the air gap external rotor and internal rotor, arrive the S pole of magnetic pole, then get back to N pole along the yoke of rotor, form a closed-loop path.In auxiliary-motor, on rotor, the permanent magnet magnetic line of force is from permanent magnet N pole, radially across the air gap between stators and rotators, yoke along stator to arrive above another adjacent permanent magnet S body and arrives the S pole of this permanent magnet radially across the air gap between stators and rotators, get back to the S pole of original permanent magnet again from the N pole of this permanent magnet along the yoke of rotor, form a closed-loop path.Rotating speed and the torque of whole system is controlled by the electric current and stator winding controlling magnet exciting coil.
In above-mentioned Split electromagnetic coupled clutch, the inner peripheral surface of mair motor external rotor axially has teeth groove, three-phase windings is provided with in teeth groove, the outer circumference surface of hidden pole type internal rotor axially has teeth groove, above-mentioned magnet exciting coil is just arranged in teeth groove, salient pole type internal rotor makes the magnetic pole with protruding, and magnet exciting coil is concentrated and is placed on the magnetic pole of protrusion.The inner peripheral surface of auxiliary-motor stator axially has teeth groove, and said stator winding is arranged in teeth groove, and on rotor, device has the permanent magnet for generation of magnetic flux.
Mair motor is equivalent to a double-rotor machine, and both made generator and also done motor use, the generating rotating speed of double-rotor machine using speed discrepancy as generator, within driving again internal rotor, rotor speed is moved simultaneously.The electric energy conversion that auxiliary-motor is mainly used in mair motor to produce is that mechanical energy acts in rotating shaft, thus original for mair motor used up slip power is changed into electric energy and is added on output shaft, so improve the efficiency of whole system.Meanwhile, we can control this part electric energy, thus reach the object of speed governing.
Split electromagnetic coupled clutch also comprises output control module, and output control module allows steering pump run with higher rotating speed when heavy vehicle needs to turn to, thus can provide larger power steering; Output control module allows steering pump run with lower rotating speed when heavy vehicle is kept straight on, while providing required hydraulic coupling, allow steering pump run under low pressure conditions, so greatly reduce the parasitic drain of hydraulic pump, improve fuel economy.Due to when not needing power steering, pump can work under low pressure conditions, the time during this period of time more than 90%, and thus use the electric-controlled hydraulic steering of Split electromagnetic coupled clutch to add the life-span of pump, this is also of the present invention one large advantage.
In this electric-controlled hydraulic steering, above-mentioned output control module comprises the first sensor detecting input rotating speed, detect the second transducer of output rotating speed, with the power circuit of external rotor winding switching, the motor control unit be connected with excitation winding and stator winding, above-mentioned first sensor, second transducer is all connected with motor control unit with power circuit, motor control unit can receive the signal of telecommunication of first sensor and the second sensor transmissions and carry out analyzing and processing, simultaneously according to required driving cycle, motor control unit exports the above-mentioned Split electromagnetic coupled clutch of corresponding Current Control.
In the electric-controlled hydraulic steering of above-mentioned Split electromagnetic coupled clutch, described power circuit comprises the first inverter be connected with external rotor winding and the storage battery be connected with the first inverter, motor control unit is connected with auxiliary-motor stator winding by the second inverter, and while is directly connected with excitation winding.When hydraulic pump needs larger torque, provide larger exciting current to lead to suitable electric current to stator winding to excitation winding, the torque that major and minor both motors produce synthesizes the torque needed for steering pump simultaneously.When steering pump needs less torque, provide less exciting current to excitation winding, major and minor motor provides torque to steering pump jointly.By changing the electric current led to stator winding, we can obtain with the variable power steering of the speed of a motor vehicle.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the electric-controlled hydraulic steering that is used as power of a Split electromagnetic coupled clutch, comprise engine (1), steering pump (8), rotary valve, steering gear, power cylinder and steering wheel, it is characterized in that, Split electromagnetic coupled clutch is connected with between engine (1) and steering pump (8), the input of Split electromagnetic coupled clutch is connected with engine (1) with belt (3) by belt pulley (2), output is connected with steering pump (8), described Split electromagnetic coupled clutch is also connected with output control module (10),
Described Split electromagnetic coupled clutch, comprise mair motor (21) and auxiliary-motor (22), mair motor (21) is fixed on stiff end (13), and mair motor (21) is coaxially connected by rotor shaft with auxiliary-motor (22);
Mair motor (21) is equivalent to a double-rotor machine, comprise external rotor (4), internal rotor (051) and rotor shaft, external rotor (4) by the vibrating part (14) that is fixedly connected with it and be connected to that bearing (12) between vibrating part and rotor shaft and internal rotor (051) formed can the structure that rotates of rotor rotating shaft jointly, internal rotor (051) is provided with internal rotor winding (0511), external rotor (4) is provided with the external rotor winding (041) matched with described internal rotor winding (0511);
Auxiliary-motor is direct current permanent magnetic brushless motor, comprise housing (7), stator (6), rotor (052) and rotor shaft, stator (6) is fixed on housing (7), housing (7) maintains static, rotor (052) is fixedly connected with rotor shaft, and keep concentric with stator (6), rotor (052) is provided with permanent magnet (0521), stator (6) is provided with the stator winding (061) matched with permanent magnet (0521), the internal rotor (051) of mair motor (21) is connected by rotor shaft with the rotor (052) of auxiliary-motor, form coaxial rotor (5).
2. the electric-controlled hydraulic steering that is used as power of a kind of Split electromagnetic coupled clutch according to claim 1, it is characterized in that, described output control module (10) comprises the first sensor (11) for detecting external rotor (4) rotating speed, for detecting second transducer (9) of coaxial rotor (5) rotating speed, the first inverter (104) be connected with external rotor winding (041), the second inverter (101) be connected with stator winding (061), the motor control unit (102) of storage battery (103) and control internal rotor winding (0511) and stator winding (061), motor control unit (102) receives the tach signal from first sensor (11) and the second transducer (9), receive the speed of a motor vehicle simultaneously, steering wheel angle, steering-wheel torque, brake pedal position signal, produce suitable electric current and be supplied to internal rotor winding (0511) and suitable voltage is supplied to stator winding (061), thus variable steering pump rotating speed and variable power steering are provided.
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| CN201310559212.9A CN103633813B (en) | 2013-11-12 | 2013-11-12 | Split electromagnetic coupled clutch and the electric-controlled hydraulic steering be used as power with it |
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| CN201310559212.9A CN103633813B (en) | 2013-11-12 | 2013-11-12 | Split electromagnetic coupled clutch and the electric-controlled hydraulic steering be used as power with it |
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| CN103633813B true CN103633813B (en) | 2015-09-30 |
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| CN104539133B (en) * | 2014-12-18 | 2017-01-04 | 中联重科股份有限公司渭南分公司 | Magnetic connecting structure, power control apparatus, system, method and engineering machinery |
| DE102015007280A1 (en) | 2015-06-10 | 2016-12-15 | Thyssenkrupp Ag | Vehicle steering with steer-by-wire system and mechanical fallback level |
| CN105172886B (en) * | 2015-09-29 | 2019-02-05 | 江苏大学 | A kind of heavy vehicle electromagnetic clutch power steering control system and control method |
| CN106428201B (en) * | 2016-12-16 | 2018-09-25 | 吉林大学 | A kind of nested type birotor steering motor multi-mode steering system and control method |
| CN106787955A (en) * | 2017-02-15 | 2017-05-31 | 丁伟 | A kind of combined magnetic force is driven compound machine |
| CN116215645A (en) * | 2017-04-17 | 2023-06-06 | 吉林大学 | Control method of power-assisted steering and independent driving integrated wheel-side electric driving device |
| CN107017714B (en) * | 2017-05-18 | 2019-03-29 | 中车永济电机有限公司 | High-speed synchronous main and backup generator rotor |
| CN112491196B (en) * | 2020-11-20 | 2022-03-11 | 无锡南洋职业技术学院 | New energy automobile variable power motor |
| CN113937920B (en) * | 2021-09-29 | 2023-03-28 | 西安交通大学 | Wireless power supply system structure for disc type double-rotor double-winding motor |
| CN114954560B (en) * | 2022-04-22 | 2024-04-12 | 沈阳中铁安全设备有限责任公司 | Lifting parking anti-slip device |
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| CN103633813A (en) | 2014-03-12 |
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