CN105539578A - Direct-current brushless electro-hydraulic power steering pump and control method thereof of new energy passenger car - Google Patents
Direct-current brushless electro-hydraulic power steering pump and control method thereof of new energy passenger car Download PDFInfo
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- CN105539578A CN105539578A CN201511002908.7A CN201511002908A CN105539578A CN 105539578 A CN105539578 A CN 105539578A CN 201511002908 A CN201511002908 A CN 201511002908A CN 105539578 A CN105539578 A CN 105539578A
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- steering
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- steering pump
- motor
- assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
- B62D5/064—Pump driven independently from vehicle engine, e.g. electric driven pump
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/062—Details, component parts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses a direct-current brushless electro-hydraulic power steering pump and a control method thereof of a new energy passenger car. The technical problem of too high temperature of oil liquid of existing steering pumps is solved. The direct-current brushless electro-hydraulic power steering pump of the new energy passenger car comprises a steering pump assembly, a direct-current brushless motor and a steering controller. An output shaft of the direct-current brushless motor is connected with a pump shaft of the steering pump assembly through an insulation transmission device. The insulation transmission device comprises a transmission connection block and a connection block insulation sleeve which are connected to the pump shaft in a sleeving mode sequentially from inside to outside and connected into a whole. The transmission connection block and the pump shaft transmit torque fixedly in the radial direction, and the connection block insulation sleeve and the output shaft of a steering motor assembly transmit torque fixedly in the radial direction. A heat dissipation cover with an opening is disposed on the steering pump assembly, the steering controller is connected with an angle sensor which detects the rotation angle of a passenger car steering wheel, and the steering controller controls the rotation speed of the steering motor assembly in a closed-loop mode according to an angle signal.
Description
Technical field
The present invention relates to a kind of motor-drive pump, especially a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and control method thereof.
Background technology
Automobile hydraulic power steering blade pump traditional at present, steering pump entirety is arranged on driving engine interface by gear or spline mode, steering pump entirety is arranged on driving engine interface by gear or spline mode, the rotating speed of steering pump changes along with the change of driving engine, steering pump range of speed is higher, the flow of the output fluid of steering pump only controls by the blade rotational speed of steering pump, make the size of power steering uncontrollable, and city bus time of run is longer, because steering pump works for a long time at high speeds, the idle work produced because of internal overflow is larger, cause system high oil temperature, component life in steering pump is shortened.
Summary of the invention
Technical matters to be solved by this invention is just to provide a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, solves the technical matters that the oil liquid temperature of existing steering pump is too high.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, comprise steering pump assembly, DC brushless motor and steering controller, the output shaft of DC brushless motor is connected by insulated transmission device with the pump shaft of steering pump assembly, described insulated transmission device comprises be in transmission connection block and contiguous block insulation sleeve, described be in transmission connection block and contiguous block insulation sleeve to be socketed in successively from inside to outside on pump shaft and to connect as one, described block and the radial fixed delivery moment of torsion of pump shaft of being in transmission connection, the radial fixed delivery moment of torsion of output shaft of contiguous block insulation sleeve and steer motor assembly, described steering pump assembly is provided with the heat dissipating housing with opening, radiating gill is provided with in described heat dissipating housing, the diapire of this radiating gill and heat dissipating housing and the sidewall of close heat dissipating housing diapire form heat dissipation cavity, this radiating gill and heat dissipating housing form radiating groove near the sidewall of opening, the notch of this radiating groove is provided with seal ring, radiating groove seals by the end face that sealing circle is crimped on steering pump assembly, the sidewall of described heat dissipating housing is provided with the breather port of at least one through heat dissipation cavity and the fill orifice of a through radiating groove, radiating groove is filled with thermal conducting agent by fill orifice, the outside of described heat dissipating housing is provided with the cooling fan of relative breather port setting, described steering controller is connected with the angular transducer detecting passenger vehicle rotating of steering wheel angle, steering controller is according to the rotating speed of angle signal closed loop control steer motor assembly.
Further, described radiating gill is connected with conducting strip on the end face of heat dissipating housing diapire, and described conducting strip is vertical with radiating gill to be arranged.
Further, described in state between steering pump assembly and steer motor assembly and be provided with flange insulating mat, the locking of steering pump assembly, flange insulating mat and steer motor assembly is integrated by hold-down bolt.
The invention also discloses a kind of control method of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, the angle signal numerical value that described angular transducer detects is α, the maximum rotation angle of bearing circle is A, the speed revolution value of described motor-drive pump is n, and described steering controller to the dominated formulate of speed revolution value n is:
When
time,
When
time,
Beneficial effect of the present invention is:
1, the thermal conducting agent in heat dissipating housing can fit in steering pump fitfull outside face completely, increases dissipating area, significantly improves the radiating efficiency of steering pump assembly, and heat by blower fan Quick diffusing, thus significantly reduces the temperature of the inner fluid of steering pump assembly;
2, steering pump is connected with DC brushless motor, steering pump work is driven by DC brushless motor, because the rotating speed of steering pump does not change along with engine speed change, steering pump does not produce idle work loss, drive the scheme of steering pump to save more than 60% power compared with conventional engines, greatly save energy ezpenditure;
3, steering controller realizes by dominated formulate the rotating speed accurately controlling DC brushless motor, thus realize the rotating speed of Based Intelligent Control steering pump, the rotating speed realizing steering pump can adjust accordingly according to the steering state of vehicle reality, under the prerequisite meeting power-assisted requirement, the oil liquid temperature of further reduction steering pump, improves the service life of steering pump.
Concrete technique effect of the present invention will be further described in a specific embodiment.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described further:
Fig. 1 is the schematic diagram of intelligent hydraulic servo steering system in the present invention;
Fig. 2 is the structural representation of intelligent hydraulic servo steering system in the present invention;
Fig. 3 is integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump structure schematic diagram in the present invention;
Fig. 4 is the structural representation of proportion magnetic valve in intelligent hydraulic servo steering system in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As depicted in figs. 1 and 2, intelligent hydraulic servo steering system, comprise steering assembly 15, petrol storage tank 20, motor-drive pump 13, steering controller 25 and the angle sensor 26 for detecting rotation angle of automotive steering wheel, motor-drive pump 13 has oil inlet and oil outlet, steering assembly 15 has oil inlet port and return opening, the oil inlet of motor-drive pump 13 is communicated with petrol storage tank 20 by oil inlet 19, the oil outlet of motor-drive pump 13 is communicated with the oil inlet port of steering assembly 15 by oil outlet pipe 16, the return opening of steering assembly 15 is communicated with petrol storage tank 20 by oil return pipe 17, blade in motor-drive pump 13 is by having rotated and reverse the process of oil suction and force feed, steering controller 25 is by the angle signal of CAN receiving angle sensor 16, steering controller 25 is electrically connected by UVW triple line and motor-drive pump 13, steering controller 25 is according to the rotating speed of angle signal closed loop control motor-drive pump 13.
In order to increase the reliability of system, motor-drive pump 13 has outgate 23, the outgate 23 of motor-drive pump 13 is provided with by pass valve 24, by pass valve 24 is communicated with petrol storage tank 20 by overflow pipe, when motor-drive pump 13 oil pressure is greater than peak value oil pressure, by pass valve 24 is opened, fluid in motor-drive pump 13 flows into petrol storage tank 20 by by pass valve 24, thus lay down the oil pressure of motor-drive pump 13, oil return pipe 17 is provided with safety valve, under the out of control state of new-energy automobile motor-drive pump can be ensured, if motor-drive pump 13 is still in a high position by oil pressure after by pass valve 24 release, safety valve is opened and is laid down by oil pressure, the safety of further support system.
As shown in figures 1 and 3, integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump is the motor-drive pump 13 in Fig. 1, this motor-drive pump 13 comprises steering pump assembly 135, the oil inlet of steering pump assembly 135 and oil outlet are oil inlet and the oil outlet of above-mentioned said motor-drive pump 13, the input end of steering pump assembly 135 docks with the mouth of steer motor assembly 131 and fixes, steering controller 25 is connected with steer motor assembly 131 by UVW triple line, flange insulating mat 134 is provided with between steering pump assembly 135 and steer motor assembly 131, hold-down bolt 137 is by steering pump assembly 135, flange insulating mat 134 and steer motor assembly 131 locking are integrated.This flange insulating mat 134 plays insulated enclosure double action, and hold-down bolt 137 is socketed with mounting hole insulation sleeve 136, and mounting hole insulation sleeve 136 is inserted in the mounting hole of hold-down bolt.The output shaft of steer motor assembly 131 and the pump shaft of steering pump assembly 135 play by insulated transmission device the double action that is flexible coupling and insulate, described insulated transmission device comprises be in transmission connection block 133 and contiguous block insulation sleeve 132, described be in transmission connection block 133 and contiguous block insulation sleeve 132 to be socketed in successively from inside to outside on pump shaft and to connect as one, described being in transmission connection between block with contiguous block insulation sleeve adopts right-angled crossing to be connected, and reduces integrated connection length.The block 133 that is in transmission connection fixed delivery moment of torsion radial with pump shaft, contiguous block insulation sleeve 132 fixed delivery moment of torsion radial with output shaft.
Above-mentioned contiguous block insulation sleeve 132, the block 3 that is in transmission connection, flange insulating mat 134 and mounting hole insulation sleeve 136 load steering pump assembly 135 in order; And then steering pump assembly 135 and steer motor assembly 131 are assembled, lock with hold-down bolt 137; After steer motor passes into 220VAC voltage, drive steering pump rotary work, provide stable oil pressure to steering swivel system.
Steering pump assembly 135 is provided with the heat dissipating housing 138 with opening, radiating gill 1381 is provided with in heat dissipating housing 138, this radiating gill 1381 is with the diapire of heat dissipating housing 138 and form heat dissipation cavity 1382 near the sidewall of heat dissipating housing 138 diapire, this radiating gill 1381 forms radiating groove 1383 with heat dissipating housing 138 near the sidewall of opening, the notch of this radiating groove 1383 is provided with seal ring 1384, seal ring 1384 adopts resistant to elevated temperatures seal ring, heat dissipating housing 138 is secured by bolts on steering pump assembly 135, radiating groove 1383 seals by the end face making seal ring 1384 be crimped on steering pump assembly 135, the sidewall of heat dissipating housing 138 is provided with the breather port 1385 of at least one through heat dissipation cavity 1382 and the fill orifice 1386 of a through radiating groove 1383, radiating groove 1383 is filled with thermal conducting agent by fill orifice 1386, the outside of heat dissipating housing 138 is provided with the cooling fan 1387 of relative breather port 1385 setting.
In order to improve dissipating area further, radiating gill 1381 is connected with conducting strip 1388 on the end face of heat dissipating housing 138 diapire, conducting strip 1388 is vertical with radiating gill 1381 to be arranged, above-mentioned heat dissipating housing 138, radiating gill 1381 and conducting strip 1388 should adopt aluminium sheet to be pressed into, it has good heat conductivility and the weight of reduction, and thermal conducting agent adopts silica gel.
Thermal conducting agent fills up radiating groove 1383 by fill orifice 1386, thus the end face of steering pump assembly 135 is contacted completely with thermal conducting agent, the heat of steering pump assembly 135 housing is passed to heat dissipating housing 138, radiating gill 1381 and conducting strip 1388 by thermal conducting agent efficiently, dry heat Quick diffusing eventually through cooling fan 1387, significantly reduce the temperature of steering pump assembly 135 inner fluid.
As shown in Figure 4, the oil outlet of motor-drive pump 13 is provided with proportion magnetic valve, proportion magnetic valve comprises valve body 1, proportion electro-magnet 4 and the push rod 2 be located in valve body 1 and guide pin bushing 3, push rod 2 slides and is arranged in guide pin bushing 3, proportion electro-magnet 4 comprises coil and armature, armature is connected with one end of push rod 2, the other end of push rod 2 is connected with pushing block 5, the inner chamber of valve body 1 is divided into the first inner chamber 11 and the second inner chamber 12 by this pushing block 5, seal ring is provided with between the outer wall of pushing block 5 and the inwall of valve body 1, thus the first inner chamber 11 and the second inner chamber 12 are sealed isolated, valve body 1 has oil inlet port and oil outlet, oil inlet port 11 first cavity of valve body 1 is communicated with, the oil outlet of valve body 1 is communicated with the second inner chamber 12, guide hole 7 is provided with in the outer wall of valve body, first inner chamber 11 is connected by guide hole 7 with the second inner chamber 12, the opening that guide hole 7 is communicated with the second cavity 12 is restriction 71, spring 8 is provided with in first inner chamber 11, one end of this spring 8 is connected with the inwall of valve body, push rod 2 drives pushing block 5 to move reciprocatingly with the gap length between pushing block 5 and restriction 71 vertically, in the process of the gap smaller between pushing block 5 and restriction 71, spring 8 is compressed by pushing block 5, the coil of proportion electro-magnet 4 accesses direct current (DC) by steering controller 25, steering controller 25 is according to the size of current of angle signal control coil.
Push rod comprises first body of rod 21 be connected successively, second body of rod 22 and the 3rd body of rod 23, the head end of first body of rod 21 connects armature, the head end of the 3rd body of rod 23 connects pushing block 5, the block 6 with inner chamber 61 is provided with in first inner chamber 11, the inner chamber 61 of this block 6 is communicated with guide hole 7, this block 6 is provided with the through hole 62 of the inner chamber 61 of connection first inner chamber 11 and block 6, second body of rod 22 and through hole 62 bearing fit, the external diameter of first body of rod 21 and the 3rd body of rod 23 is greater than the aperture of through hole 62, the reciprocating maximum displacement of push rod 2 is limited by first body of rod 21 and the 3rd body of rod 23.
Oil distribution casing 9 is provided with in motor-drive pump 13, the oil inlet port of oil distribution casing 9 is communicated with the oil outlet of motor-drive pump 13, and the oil outlet of oil distribution casing 9 is communicated with the first inner chamber 11, the distributional effects of oil distribution casing 9 height oil circuit, output torque when the mesohigh oil of motor-drive pump 9 is acted on, during low pressure oil effect discharges high pressure oil.
As shown in Figure 1 to Figure 4, steering swivel system also comprises the car speed sensor 27 detecting car speed, steering controller 25 receives the vehicle speed signal of car speed sensor 27 by CAN, micro controller system is integrated with in steering controller 25, micro controller system adopts Hall element to detect the rotating speed of motor-drive pump 13, the closed loop control of steering controller 25 refers to that micro controller system gathers Hall element by D/A and gathers the tach signal of motor-drive pump 13 as feedback signal, micro controller system is according to speed feedback signal, control to control the rotating speed of motor-drive pump 13 preferably by PWM, realize closed loop control; According to the size of current of angle signal and speed signal closed loop control coil, steering controller 25 refers to that micro controller system preferably adopts the size of current of the mode control coil controlling DC constant current power supply, micro controller system D/A gathers the current signal of proportion magnetic valve coil as feedback signal, micro controller system controls the electric current that DC constant current power supply exports according to current feedback signal, closed loop control; And PWM wherein controls and the mode of closed loop control DC constant current power supply adopts existing routine techniques, the present invention no longer repeats this.
Working process of the present invention is: motor-drive pump 13 draws the oil in petrol storage tank 20 by oil inlet 19, the fluid of motor-drive pump 13 flows into the oil inlet port of oil distribution casing 9, flow in the inner chamber 61 of block 6 by the oil outlet of oil distribution casing again, fluid flows into guide hole 7 again and to flow in the second cavity 12 through restriction 71 and finally flow in steering assembly 15, complete and turn to, be back in petrol storage tank 20 by by oil return pipe 17 after turning to end, realize once circulating, steering controller 25 controls motor-drive pump rotating speed and push rod 2 displacement simultaneously in the process, and concrete control principle is:
1, the principle of motor-drive pump rotating speed is controlled: steering controller 25 accepts the angle signal of angular transducer 26 and the vehicle speed signal numerical value of car speed sensor 27, the micro controller system of steering controller 25 calculates the rotating speed of target numerical value of motor-drive pump 13 by dominated formulate, the micro controller system of steering controller 25 gathers the actual speed of motor-drive pump 13 simultaneously, the micro controller system of steering controller 25 is by contrasting rotating speed of target numerical value and actual speed numerical value, and the actual speed of control motor-drive pump 13 is close or equal rotating speed of target; The actual speed of motor-drive pump 13 is higher, and power steering is larger, but the oil liquid temperature in motor-drive pump 13 will raise, and the actual speed of motor-drive pump 13 is lower, and power steering is less, and the oil liquid temperature in motor-drive pump 13 will reduce.
2, the principle of push rod 2 displacement is controlled: steering controller 25 accepts the angle signal of angular transducer 26 and the vehicle speed signal numerical value of car speed sensor 27, micro controller system calculates the target current numerical value of proportion electro-magnet 4 coil by dominated formulate, the micro controller system of steering controller 25 gathers the actual current numerical value of coil simultaneously, the micro controller system of steering controller 25 by contrasting target current numerical value and actual current numerical value, control DC constant current power supply export close to or equal target current numerical value constant current to coil, the electric current of coil determines the electromagnetic force size of proportion electro-magnet 4 pairs of armature, armature is subject to electromagnetic force and drives push rod 2 and pushing block 5 to move towards spring direction, pushing block 5 diminishes gradually with the gap of restriction 71, the fluid amount entering the second cavity 12 diminishes, thus the fluid amount entering steering assembly 15 is also diminished accordingly, realize power steering to diminish, pushing block 5 Compress Spring 8, until the electromagnetic force that armature is subject to is equal with the elastic force of spring 8, pushing block 5 keeps dynamical equilibrium with the gap of restriction 71, subsequently, the current values of control coil diminishes, the elastic force of spring 8 is greater than the electromagnetic force that armature is subject to, pushing block 5 becomes large with the gap of restriction 71, power steering becomes large, the current values of control coil becomes large, the elastic force of spring 8 is less than the electromagnetic force that armature is subject to, the gap smaller of pushing block 5 and restriction 71, power steering diminishes, the fluid flow so just achieved by controlling to flow into steering assembly 15 controls the size of power steering further, the size which controls power steering with the rotating speed controlling motor-drive pump 13 combines, control more accurate, the temperature of fluid significantly can be reduced under the prerequisite meeting automobile power-assisted.
The control method of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, the angle signal numerical value that angular transducer 26 detects is α, the maximum rotation angle of bearing circle is A, and the speed revolution value of motor-drive pump 13 is n, and the dominated formulate of steering controller 25 couples of speed revolution value n is:
When
time,
When
time,
When automobile does not turn to or bearing circle is killed, namely when α=0 or α=A, automobile does not need power steering, n=600, and now rotating speed is in minimum, and the oil liquid pressure in motor-drive pump 13 is in minimum, and temperature is reduced, and arrives in α=0
process in, n becomes large gradually, and power steering becomes large gradually,
time, n=1200, rotating speed reaches maxim, and rotating of steering wheel is light,
to the process of α=A, rotating speed diminishes gradually, and power steering diminishes gradually, when turning to greatly, rotary valve entrance in steering assembly 15 diminishes, and reduces rotating speed and is conducive to reducing the oil pressure in motor-drive pump 13, thus reduce temperature rise speed and the actual temperature of motor-drive pump 13 inner fluid;
The vehicle speed signal numerical value that car speed sensor 27 detects is S, and the current values of coil is I, and the elasticity modulus of spring is k, and the magnetic induction density of permanent magnet is B, and the length of coil is L, and steering controller to the dominated formulate of current values I is:
Car speed S is larger, the current values I of coil is larger, the displacement that push rod 2 drives pushing block 5 to move towards spring 8 is larger, pushing block 5 is less with the gap of restriction 71, the fluid flow flowing into steering assembly 15 is less, power steering is less, bearing circle is more heavy, be conducive to automobile driving safety at high speeds, contrary car speed S is less, bearing circle is lighter, be conducive to the steering operation under automobile lower-speed state, in addition, when automobile does not turn to or bearing circle is killed, the numerical value of steering angle α does not affect the current values I of coil, and at motor turning and steering angle is less than steering locking angle degree makes, steering angle α is larger, the current values I of coil is larger, bearing circle is more heavy, limit automobile wide-angle to turn to, further increase automobile driving safety at high speeds.
A kind of observed data of the present invention is: use the motor-drive pump that discharge capacity is 10ml/r, be after the continuous wide-angle steering operation of 1min in the automobile time of carrying out, the temperature rise of motor-drive pump 13 fluid is 60-65 DEG C, and under equal conditions, the temperature rise of existing motor-drive pump 13 fluid is 90-95 DEG C, therefore, energy actv. of the present invention avoids the phenomenon of motor-drive pump high oil temperature.
Just preferred embodiment of the present invention is described above, but can not be interpreted as it is limitations on claims.The present invention is not only confined to above embodiment, and its concrete structure allows to change, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all belongs to the scope that claims of the present invention define.
Claims (4)
1. an integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, it is characterized in that, comprise steering pump assembly, DC brushless motor and steering controller, the output shaft of DC brushless motor is connected by insulated transmission device with the pump shaft of steering pump assembly, described insulated transmission device comprises be in transmission connection block and contiguous block insulation sleeve, described be in transmission connection block and contiguous block insulation sleeve to be socketed in successively from inside to outside on pump shaft and to connect as one, described block and the radial fixed delivery moment of torsion of pump shaft of being in transmission connection, the radial fixed delivery moment of torsion of output shaft of contiguous block insulation sleeve and steer motor assembly, described steering pump assembly is provided with the heat dissipating housing with opening, radiating gill is provided with in described heat dissipating housing, the diapire of this radiating gill and heat dissipating housing and the sidewall of close heat dissipating housing diapire form heat dissipation cavity, this radiating gill and heat dissipating housing form radiating groove near the sidewall of opening, the notch of this radiating groove is provided with seal ring, radiating groove seals by the end face that sealing circle is crimped on steering pump assembly, the sidewall of described heat dissipating housing is provided with the breather port of at least one through heat dissipation cavity and the fill orifice of a through radiating groove, radiating groove is filled with thermal conducting agent by fill orifice, the outside of described heat dissipating housing is provided with the cooling fan of relative breather port setting, described steering controller is connected with the angular transducer detecting passenger vehicle rotating of steering wheel angle, steering controller is according to the rotating speed of angle signal closed loop control steer motor assembly.
2. a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump according to claim 1, it is characterized in that, described radiating gill is connected with conducting strip on the end face of heat dissipating housing diapire, and described conducting strip is vertical with radiating gill to be arranged.
3. a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump according to claim 1, it is characterized in that, described stating between steering pump assembly and DC brushless motor is provided with flange insulating mat, and the locking of steering pump assembly, flange insulating mat and steer motor assembly is integrated by hold-down bolt.
4. the control method of an integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, it is characterized in that, the angle signal numerical value that described angular transducer detects is α, the maximum rotation angle of bearing circle is A, the speed revolution value of described motor-drive pump is n, and described steering controller to the dominated formulate of speed revolution value n is:
When
time,
When
time,
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710636295.5A CN107685766B (en) | 2015-12-28 | 2015-12-28 | A kind of integral new-energy passenger intelligent electric hydraulic power-assisted steering pump |
| CN201511002908.7A CN105539578B (en) | 2015-12-28 | 2015-12-28 | A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201511002908.7A CN105539578B (en) | 2015-12-28 | 2015-12-28 | A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method |
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| CN201710636295.5A Division CN107685766B (en) | 2015-12-28 | 2015-12-28 | A kind of integral new-energy passenger intelligent electric hydraulic power-assisted steering pump |
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| CN105539578A true CN105539578A (en) | 2016-05-04 |
| CN105539578B CN105539578B (en) | 2017-09-29 |
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| CN201511002908.7A Active CN105539578B (en) | 2015-12-28 | 2015-12-28 | A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106828594A (en) * | 2017-01-04 | 2017-06-13 | 安徽德孚转向系统股份有限公司 | A kind of motorcar electric hydraulic power-assisted steering pump assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114738272A (en) * | 2022-02-28 | 2022-07-12 | 金龙联合汽车工业（苏州）有限公司 | Speed-following control method for electric steering pump for new energy passenger car |
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| CN103950469A (en) * | 2014-05-19 | 2014-07-30 | 全兴精工集团有限公司 | Electric hydraulic steering oil pump of new energy bus and control method |
| CN104595259A (en) * | 2014-08-29 | 2015-05-06 | 北京福田戴姆勒汽车有限公司 | Power steering oil tank, automobile steering system with power steering oil tank and automobile with power steering oil tank |
| CN104986219A (en) * | 2015-06-19 | 2015-10-21 | 芜湖德孚转向系统有限公司 | Electrically-controlled hydraulic power-assisted steering control method |
| CN205365729U (en) * | 2015-12-28 | 2016-07-06 | 全兴精工集团有限公司 | Electronic power -assisted steering pump of brushless type of new forms of energy passenger train direct current |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828594A (en) * | 2017-01-04 | 2017-06-13 | 安徽德孚转向系统股份有限公司 | A kind of motorcar electric hydraulic power-assisted steering pump assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107685766A (en) | 2018-02-13 |
| CN107685766B (en) | 2019-05-17 |
| CN105539578B (en) | 2017-09-29 |
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