CN105539578B - A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method - Google Patents
A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method Download PDFInfo
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- CN105539578B CN105539578B CN201511002908.7A CN201511002908A CN105539578B CN 105539578 B CN105539578 B CN 105539578B CN 201511002908 A CN201511002908 A CN 201511002908A CN 105539578 B CN105539578 B CN 105539578B
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- steering
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- heat dissipating
- assembly
- dissipating housing
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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 kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump and its control method, solve the too high technical problem of the oil liquid temperature of existing steering pump, the integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, including turning to pump assembly, DC brushless motor and steering controller, the output shaft of DC brushless motor is connected with turning to the pump shaft of pump assembly by insulated transmission device, insulated transmission device includes drive connection block and contiguous block insulation sleeve, drive connection block and contiguous block insulation sleeve are socketed on pump shaft and connected as one successively from inside to outside, be connected block and the radially fixed transmission moment of torsion of pump shaft, the radially fixed transmission moment of torsion of output shaft of contiguous block insulation sleeve and steering motor assembly, turn to pump assembly and be provided with the heat dissipating housing with opening, steering controller is connected with the angular transducer of detection car steering wheel rotational angle, steering controller is according to the rotating speed of angle signal closed-loop control steering motor assembly.
Description
Technical field
The present invention relates to a kind of electrodynamic pump, especially a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump
And its control method.
Background technology
Automobile hydraulic power steering blade pump traditional at present, steering pump is arranged on hair entirely through gear or spline mode
Motivation interface, steering pump is arranged on engine interface entirely through gear or spline mode, and the rotating speed of steering pump is with starting
The change of machine and change, the steering pump range of speeds is higher, steering pump output fluid flow only by steering pump blade rotational speed
Control so that the size of power steering is uncontrollable, and city bus run time is longer, because steering pump is for a long time in height
Speed is lower to work, and because the idle work that internal overflow is produced is larger, causes system high oil temperature so that the component life contracting in steering pump
It is short.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of integral new-energy passenger brush DC type electric hydaulic power-assisted
Steering pump, solves the too high technical problem of the oil liquid temperature of existing steering pump.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, including turn to pump assembly, brush DC electricity
Machine and steering controller, the output shaft of DC brushless motor are connected with turning to the pump shaft of pump assembly by insulated transmission device, institute
Stating insulated transmission device includes drive connection block and contiguous block insulation sleeve, the drive connection block and contiguous block insulation sleeve from it is interior to
It is socketed on pump shaft and connects as one successively outside, the drive connection block and the radially fixed transmission moment of torsion of pump shaft, contiguous block is exhausted
Edge covers the radially fixed transmission moment of torsion of output shaft with steering motor assembly, and the steering pump assembly is provided with the radiating with opening
Fin is provided with cover, the heat dissipating housing, the side wall of the bottom wall and close heat dissipating housing bottom wall of the fin and heat dissipating housing is formed
Heat dissipation cavity, the fin is with heat dissipating housing close to the side wall formation radiating groove of opening, and the notch of the radiating groove is provided with sealing ring, and this is close
The end face that seal is crimped on steering pump assembly seals radiating groove, and the side wall of the heat dissipating housing radiates provided with least one insertion
The fill orifice of the air vent of chamber and an insertion radiating groove, radiating groove is filled with thermal conducting agent, the heat dissipating housing by fill orifice
Outside be provided with the cooling fan that relative air vent is set, the steering controller is connected with detection car steering wheel rotational angle
Angular transducer, steering controller is according to the rotating speed of angle signal closed-loop control steering motor assembly.
Further, the fin is towards thermally conductive sheet is connected with the end face of heat dissipating housing bottom wall, and the thermally conductive sheet is with dissipating
Backing is vertically arranged.
Further, described state is provided with flange felt pad between steering pump assembly and steering motor assembly, and installation bolt will
Pump assembly, flange felt pad and the locking of steering motor assembly is turned to be integrated.
The invention also discloses a kind of control method of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, institute
The angle signal numerical value for stating angular transducer detection is α, and the maximum rotation angle of steering wheel is A, the rotating speed number of the electrodynamic pump
It is worth for n, the steering controller is to the speed revolution value n formula that controls：
WhenWhen,
WhenWhen,
Beneficial effects of the present invention are：
1st, the thermal conducting agent in heat dissipating housing can fit in the irregular outer surface of steering pump completely, increase area of dissipation, significantly
The radiating efficiency for turning to pump assembly is improved, heat is by blower fan Quick diffusing, so as to significantly reduce steering pump assembly interior oil liquid
Temperature；
2nd, steering pump and DC brushless motor are connected, and are driven by DC brushless motor and are turned to pump work, due to steering pump
Rotating speed changes not as engine speed changes, and steering pump does not produce idle work loss, and steering pump is driven compared with conventional engines
Scheme save more than 60% power, greatly save energy expenditure；
3rd, steering controller is by controlling formula to realize the rotating speed of accurate control DC brushless motor, so as to realize intelligent control
The rotating speed of steering pump processed, realizing the rotating speed of steering pump can adjust accordingly according to the actual steering state of vehicle, be helped in satisfaction
On the premise of power requirement, further the oil liquid temperature of reduction steering pump, improves the service life of steering pump.
The particular technique effect of the present invention will be further described in a specific embodiment.
Brief description of the drawings
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 the structural representation of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump in the present invention；
Fig. 4 is the structural representation of proportion magnetic valve in intelligent hydraulic servo steering system in the present invention.
Embodiment
The embodiment to the present invention elaborates below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, intelligent hydraulic servo steering system, including steering assembly 15, oil storage tank 20, electrodynamic pump
13rd, steering controller 25 and the angle sensor 26 for detecting rotation angle of automotive steering wheel, electrodynamic pump 13 have oil inlet
And oil-out, steering assembly 15 has oiler and oil return opening, and the oil inlet of electrodynamic pump 13 passes through oil inlet pipe 19 and oil storage tank
20 connections, the oil-out of electrodynamic pump 13 is connected by flowline 16 with the oiler of steering assembly 15, steering assembly 15
Oil return opening is connected by oil return pipe 17 with oil storage tank 20, and the blade in electrodynamic pump 13 completes oil suction and force feed by rotating and reverse
Process, steering controller 25 passes through UVW by the angle signal of CAN receiving angle sensor 16, steering controller 25
Triple line is electrically connected with electrodynamic pump 13, and steering controller 25 is according to the rotating speed of angle signal closed-loop control electrodynamic pump 13.
In order to increase the reliability of system, electrodynamic pump 13 has overfall 23, and the overfall 23 of electrodynamic pump 13 is provided with excessive
Valve 24 is flowed, overflow valve 24 is connected by overflow pipe with oil storage tank 20, in the case where the oil pressure of electrodynamic pump 13 is more than peak value oil pressure, overflow
Stream valve 24 is opened, and the fluid in electrodynamic pump 13 flows into oil storage tank 20 by overflow valve 24, so as to lay down the oil pressure of electrodynamic pump 13, is returned
Oil pipe 17 is provided with safety valve, in the state of ensure that new-energy automobile electrodynamic pump is out of hand, if electrodynamic pump 13 is by overflowing
Oil pressure is still in a high position after the stream release of valve 24, and safety valve is opened and lays down oil pressure, the safety of further safeguards system.
As shown in figures 1 and 3, integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump is electronic in Fig. 1
Pump 13, the electrodynamic pump 13 includes turning to pump assembly 135, and it is above-mentioned described electricity to turn to the oil inlet and oil-out of pump assembly 135
The oil inlet and oil-out of dynamic pump 13, the input for turning to pump assembly 135 are docked and consolidated with the output end of steering motor assembly 131
Fixed, steering controller 25 is connected by UVW triple lines with steering motor assembly 131, turns to pump assembly 135 and steering motor assembly
Flange felt pad 134 is provided between 131, installation bolt 137 will turn to pump assembly 135, flange felt pad 134 and steering motor
The locking of assembly 131 is integrated.The flange felt pad 134 plays insulated enclosure double action, and peace is socketed with installation bolt 137
Hole insulation sleeve 136 is filled, mounting hole insulation sleeve 136 is inserted in the mounting hole of installation bolt.The output shaft of steering motor assembly 131 with
The pump shaft for turning to pump assembly 135 plays the double action that is flexible coupling and insulate, the insulated transmission device by insulated transmission device
Including drive connection block 133 and contiguous block insulation sleeve 132, the drive connection block 133 and contiguous block insulation sleeve 132 are from inside to outside
It is socketed on pump shaft and connects as one successively, is connected between the drive connection block and contiguous block insulation sleeve using right-angled intersection
Connect, reduce integrated connection length.Be connected block 133 and the radially fixed transmission moment of torsion of pump shaft, contiguous block insulation sleeve 132 with it is defeated
The radially fixed transmission moment of torsion of shaft.
Above-mentioned contiguous block insulation sleeve 132, drive connection block 3, flange felt pad 134 and mounting hole insulation sleeve 136 is by suitable
Sequence, which loads, turns to pump assembly 135；Then steering pump assembly 135 is assembled with steering motor assembly 131 again, with installation bolt 137
Locking；Steering pump rotary work is driven after steering motor is passed through 220VAC voltages, stable oil pressure is provided to steering.
Turn to pump assembly 135 to be provided with the heat dissipating housing 138 with opening, heat dissipating housing 138 provided with fin 1381, this dissipates
The bottom wall and the side wall formation heat dissipation cavity 1382 close to the bottom wall of heat dissipating housing 138 of backing 1381 and heat dissipating housing 138, the fin
1381 form radiating groove 1383 with heat dissipating housing 138 close to the side wall of opening, and the notch of the radiating groove 1383 is provided with sealing ring 1384,
Sealing ring 1384 uses resistant to elevated temperatures sealing ring, and heat dissipating housing 138 is secured by bolts on steering pump assembly 135, makes sealing ring
1384 end faces for being crimped on steering pump assembly 135 seal radiating groove 1383, and the side wall of heat dissipating housing 138 is passed through provided with least one
The air vent 1385 of logical heat dissipation cavity 1382 and the fill orifice 1386 of an insertion radiating groove 1383, radiating groove 1383 pass through perfusion
Hole 1386 is filled with thermal conducting agent, and the outside of heat dissipating housing 138 is provided with the cooling fan 1387 that relative air vent 1385 is set.
In order to further improve area of dissipation, fin 1381 is towards being connected with heat conduction on the end face of the bottom wall of heat dissipating housing 138
Piece 1388, thermally conductive sheet 1388 is vertically arranged with fin 1381, above-mentioned heat dissipating housing 138, fin 1381 and thermally conductive sheet 1388
It should be pressed into using aluminium sheet, it has the weight of good heat conductivility and reduction, thermal conducting agent uses silica gel.
Thermal conducting agent fills up radiating groove 1383 by fill orifice 1386, so that turning to the end face and thermal conducting agent of pump assembly 135
Completely attach to, thermal conducting agent efficiently by turn to the housing of pump assembly 135 heat transfer is to heat dissipating housing 138, fin 1381 and leads
Backing 1388, dries heat Quick diffusing eventually through cooling fan 1387, significantly reduces and turns to the inner fluid of pump assembly 135
Temperature.
As shown in figure 4, the oil-out of electrodynamic pump 13 is provided with proportion magnetic valve, proportion magnetic valve includes valve body 1, ratio electromagnetism
Iron 4 and the push rod 2 and guide pin bushing 3 being located in valve body 1, push rod 2 are slideably positioned in guide pin bushing 3, proportion electro-magnet 4 include coil and
Armature, armature is connected with one end of push rod 2, and the other end of push rod 2 is connected with pushing block 5, and the pushing block 5 separates the inner chamber of valve body 1
For first inner chamber 11 and second inner chamber 12, sealing ring is provided between the outer wall of pushing block 5 and the inwall of valve body 1, so that by first
Chamber 11 and the sealing isolation of second inner chamber 12, valve body 1 have oiler and oil-out, and the cavity of oiler 11 first of valve body 1 is connected,
The oil-out of valve body 1 is connected with second inner chamber 12, and guide hole 7 is provided with the outer wall of valve body, and first inner chamber 11 and second inner chamber 12 are logical
Cross guide hole 7 to be connected, the opening that guide hole 7 is connected with the second cavity 12 is restriction 71, spring 8 is provided with first inner chamber 11, should
One end of spring 8 is connected with the inwall of valve body, push rod 2 axially drive pushing block 5 move reciprocatingly with pushing block 5 and restriction 71 it
Between gap length, during the gap between pushing block 5 and restriction 71 diminishes, spring 8 is compressed by pushing block 5, ratio electromagnetism
The coil of iron 4 accesses direct current by steering controller 25, and steering controller 25 is big according to the electric current of angle signal control coil
It is small.
Push rod includes first body of rod 21, second body of rod 22 and the 3rd body of rod 23 being sequentially connected, the head end of first body of rod 21
Connect in armature, the head end connection pushing block 5 of the 3rd body of rod 23, first inner chamber 11 and be provided with the block 6 with inner chamber 61, the block 6
Inner chamber 61 connected with guide hole 7, the through hole 62 of the inner chamber 61 of first inner chamber 11 and block 6, the second bar are communicated with the block 6
Body 22 is slidably matched with through hole 62, and the external diameter of first body of rod 21 and the 3rd body of rod 23 is more than the aperture of through hole 62, passes through the first bar
The body of rod 23 of body 21 and the 3rd limits the reciprocating maximum displacement of push rod 2.
It is provided with oil distribution casing 9 in electrodynamic pump 13, the oiler of oil distribution casing 9 connects the oil-out of electrodynamic pump 13, oil distribution casing 9 goes out
Hydraulic fluid port connects first inner chamber 11, and 9 height oil circuit distributional effects of oil distribution casing turn round output during the mesohigh oil effect of electrodynamic pump 9
Square, low pressure oil discharges hydraulic oil when acting on.
As shown in Figure 1 to Figure 4, steering also includes the vehicle speed sensor 27 of detection car speed, and steering controller 25 passes through
CAN is received and single-chip microcomputer is integrated with the GES of vehicle speed sensor 27, steering controller 25, and single-chip microcomputer is passed using Hall
Sensor detects the rotating speed of electrodynamic pump 13, and the closed-loop control of steering controller 25 refers to that single-chip microcomputer gathers Hall sensor by D/A
The tach signal of electrodynamic pump 13 is gathered as feedback signal, single-chip microcomputer is according to speed feedback signal, preferably by PWM controls to electricity
The rotating speed of dynamic pump 13 is controlled, and realizes closed-loop control；Steering controller 25 is according to angle signal and rate signal closed loop control
The size of current of coil processed refers to that single-chip microcomputer is preferred to use the size of current of the mode control coil of control DC constant current power supply, monolithic
The current signal of machine D/A collection proportion magnetic valve coils is as feedback signal, and single-chip microcomputer is according to current feedback signal to direct current
The electric current of constant-current source output is controlled, closed-loop control；And the controlling party of PWM controls therein and closed-loop control DC constant current power supply
Formula uses existing routine techniques, and the present invention is no longer repeated this.
The present invention the course of work be：Electrodynamic pump 13 draws the oil in oil storage tank 20 by oil inlet pipe 19, electrodynamic pump 13
Fluid flows into the oiler of oil distribution casing 9, then is flowed into by the oil-out of oil distribution casing in the inner chamber 61 of block 6, and fluid flows into guide hole 7 again
Flow into and finally flowed into the second cavity 12 in steering assembly 15 through restriction 71, complete to turn to, turn to after terminating by by returning
Oil pipe 17 is back in oil storage tank 20, realizes one cycle, in the process steering controller 25 simultaneously to electronic revolution speed and
The displacement of push rod 2 is controlled, and specific control principle is：
1st, the principle of electronic revolution speed is controlled：The angle signal and speed of the accepts angle sensor 26 of steering controller 25 are passed
The GES numerical value of sensor 27, the single-chip microcomputer of steering controller 25 is by controlling formula to calculate the rotating speed of target of electrodynamic pump 13
Numerical value, while the single-chip microcomputer of steering controller 25 gathers the actual speed of electrodynamic pump 13, the single-chip microcomputer of steering controller 25 passes through
Rotating speed of target numerical value is contrasted with actual speed numerical value, controls the actual speed of electrodynamic pump 13 to turn close or equal to target
Speed；The actual speed of electrodynamic pump 13 is higher, and power steering is bigger, but the oil liquid temperature in electrodynamic pump 13 will be raised, electrodynamic pump
13 actual speed is lower, and power steering is smaller, and the oil liquid temperature in electrodynamic pump 13 will be reduced.
2nd, the principle of the displacement of push rod 2 is controlled：The angle signal and speed of the accepts angle sensor 26 of steering controller 25 are passed
The GES numerical value of sensor 27, single-chip microcomputer by controlling formula to calculate the target current numerical value of the coil of proportion electro-magnet 4,
The single-chip microcomputer of steering controller 25 gathers the actual current numerical value of coil simultaneously, and the single-chip microcomputer of steering controller 25 passes through to target
Current values are contrasted with actual current numerical value, straight electricity of the control DC constant current power supply output close or equal to target current numerical value
Flow to coil；The electric current of coil determines electromagnetic force size of the proportion electro-magnet 4 to armature, and armature is driven by electromagnetic force
Push rod 2 and pushing block 5 are moved towards spring direction, and the gap of pushing block 5 and restriction 71 is tapered into, into the oil of the second cavity 12
Liquid measure diminishes, so that the fluid amount into steering assembly 15 also diminishes accordingly, realizes that power steering diminishes, pushing block 5 is pressed
Contracting spring 8, until the electromagnetic force that armature is subject to is equal with the elastic force of spring 8, the gap of pushing block 5 and restriction 71 keeps dynamic
Balance, then, the current values of control coil diminish, and the elastic force of spring 8 is more than the electromagnetic force that armature is subject to, pushing block 5 and section
The gap of head piece 71 becomes big, and power steering becomes big, and the current values of control coil become big, the elastic force of spring 8 be less than armature by
The electromagnetic force arrived, the gap of pushing block 5 and restriction 71 diminishes, and power steering diminishes, and is so achieved that and is turned by controlling to flow into
The size of power steering is further controlled to the fluid flow of device assembly 15, which and the rotating speed control of control electrodynamic pump 13 turn
It is combined to the size of power-assisted, control is more accurate, and the temperature of fluid can be significantly reduced on the premise of automobile power-assisted is met.
The control method of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, the angle that angular transducer 26 is detected
It is α to spend signal numerical value, and the maximum rotation angle of steering wheel is A, and the speed revolution value of electrodynamic pump 13 is n, and 25 pairs of steering controller turns
The fast numerical value n formula that controls is：
WhenWhen,
WhenWhen,
When automobile is not turned to or steering wheel is killed, i.e. α=0 or during α=A, automobile does not need power steering, n=600,
The oil liquid pressure that now rotating speed is in minimum, electrodynamic pump 13 is in minimum, and temperature is reduced, arrived in α=0
During, n becomes larger, and power steering becomes larger,When, n=1200, rotating speed reaches maximum, side
Rotate light to disk,To α=A process, rotating speed is tapered into, and power steering is tapered into, when steering greatly,
Rotary valve entrance in steering assembly 15 diminishes, and reduction rotating speed advantageously reduces the oil pressure in electrodynamic pump 13, so as to reduce electronic
The temperature rise speed and actual temperature of the inner fluid of pump 13；
The GES numerical value that vehicle speed sensor 27 is detected is S, and the current values of coil are I, and the coefficient of elasticity of spring is
K, the magnetic induction intensity of permanent magnet is B, and the length of coil is L, and steering controller is to the current values I formula that controls：
Car speed S is bigger, and the current values I of coil is bigger, the displacement that the driving pushing block 5 of push rod 2 is moved towards spring 8
Bigger, the gap of pushing block 5 and restriction 71 is smaller, and the fluid flow for flowing into steering assembly 15 is smaller, and power steering is smaller, side
It is more heavy to disk, be conducive to the driving safety of automobile at high speeds, opposite car speed S is smaller, and steering wheel is lighter, favorably
Steering operation under automobile lower-speed state, in addition, automobile is not turned to or when steering wheel is killed, steering angle α numerical value not shadow
The current values I of coil is rung, and being less than steering locking angle degree in motor turning and steering angle makes, steering angle α is bigger, coil
Current values I it is bigger, steering wheel is more heavy, limit automobile wide-angle steering, further increase automobile at high speeds
Driving safety.
The present invention a kind of experimental data be：Using the electrodynamic pump that discharge capacity is 10ml/r, the time is carried out for 1min in automobile
Continuous wide-angle steering operation after, the fluid temperature rise of electrodynamic pump 13 is 60-65 DEG C, and under equal conditions, existing electrodynamic pump
The temperature rise of 13 fluid is 90-95 DEG C, therefore, and the present invention can effectively avoid the phenomenon of electrodynamic pump high oil temperature.
Preferred embodiments of the present invention are described above, but are not to be construed as limiting the scope of the invention.This hair
Bright to be not only limited to above example, its concrete structure allows to change, and those skilled in the art can make according to the present invention
Various changes and deformation, without departing from the spirit of the present invention, belong to scope defined in appended claims of the present invention.
Claims (3)
1. a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump, it is characterised in that including steering pump assembly, directly
Brushless electric machine and steering controller are flowed, the output shaft of DC brushless motor passes through insulated transmission device with turning to the pump shaft of pump assembly
Connection, the insulated transmission device includes drive connection block and contiguous block insulation sleeve, drive connection block and the contiguous block insulation
Set is socketed on pump shaft and connected as one successively from inside to outside, the drive connection block and the radially fixed transmission moment of torsion of pump shaft,
The radially fixed transmission moment of torsion of output shaft of contiguous block insulation sleeve and steering motor assembly, the steering pump assembly is provided with to have and opened
Fin is provided with the heat dissipating housing of mouth, the heat dissipating housing, the bottom wall and close heat dissipating housing bottom wall of the fin and heat dissipating housing
Side wall formation heat dissipation cavity, the fin is with heat dissipating housing close to the side wall formation radiating groove of opening, and the notch of the radiating groove is provided with close
Seal, the end face that the sealing ring is crimped on steering pump assembly seals radiating groove, and the side wall of the heat dissipating housing is provided with least one
The air vent of individual insertion heat dissipation cavity and the fill orifice of an insertion radiating groove, radiating groove are filled with thermal conducting agent by fill orifice,
The outside of the heat dissipating housing is provided with the cooling fan that relative air vent is set, and the steering controller is connected with detection car direction
The angular transducer of disk rotational angle, steering controller is according to the rotating speed of angle signal closed-loop control steering motor assembly.
2. a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump according to claim 1, its feature exists
In, the fin towards thermally conductive sheet is connected with the end face of heat dissipating housing bottom wall, the thermally conductive sheet is vertically arranged with fin.
3. a kind of integral new-energy passenger brush DC type electric hydraulic power-assisted steering pump according to claim 1, its feature exists
In provided with flange felt pad between the steering pump assembly and DC brushless motor, it is exhausted that installation bolt will turn to pump assembly, flange
Edge pad and the locking of steering motor assembly are integrated.
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 |
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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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| 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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| 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 |
| 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 |
| CN118330524B (en) * | 2024-04-19 | 2024-09-06 | 江苏华力威电磁科技有限公司 | Electromagnetic force testing device and method for electromagnetic valve |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105539578A (en) | 2016-05-04 |
| CN107685766A (en) | 2018-02-13 |
| CN107685766B (en) | 2019-05-17 |
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