CN107187314B - Electric motor coach steering pump and air compressor machine power taking system and its control method - Google Patents
Electric motor coach steering pump and air compressor machine power taking system and its control method Download PDFInfo
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- CN107187314B CN107187314B CN201710344754.2A CN201710344754A CN107187314B CN 107187314 B CN107187314 B CN 107187314B CN 201710344754 A CN201710344754 A CN 201710344754A CN 107187314 B CN107187314 B CN 107187314B
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- magnetic powder
- powder cluth
- air compressor
- gear
- compressor machine
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
- B60K25/06—Auxiliary drives from the transmission power take-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
- B60W2510/104—Output speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/12—Brake pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/30—Auxiliary equipments
Abstract
The invention discloses a kind of electric motor coach steering pump and air compressor machine power taking system and its control method, which includes entire car controller, traction electric machine and its controller, automatic gear-box, air compressor machine ontology, steering pump ontology, power takeoff, first gear, second gear, the first magnetic powder cluth and the second magnetic powder cluth；Power takeoff is arranged in automatic gear-box, its output end is provided with first gear, second gear side by side, the latter two are connected with the first magnetic powder cluth, the second magnetic powder cluth respectively, and the first magnetic powder cluth, the second magnetic powder cluth are respectively connected to air compressor machine ontology, steering pump ontology again.The control method includes air compressor machine rate-determining steps and steering pump rate-determining steps, and wherein air compressor machine rate-determining steps pass through the combination degree of the first magnetic powder cluth of vehicle control unit controls, adjusts braking pressure in required range；Steering pump rate-determining steps provide required steering force by the importation of the second magnetic powder cluth of control and the combination degree of output par, c.
Description
Technical field
The present invention relates to a kind of pure electric coach, particularly relate to a kind of electric motor coach steering pump and air compressor machine power taking system and
Its control method.
Background technique
Pure electric coach is usually pumped by electric hydraulic power-assisted steering and provides power steering, including is turned to pump assembly, turned to electricity
Machine and steering motor controller, the output shaft of steering motor are connected with the pump shaft for turning to pump assembly, and specific structure is in Chinese patent
It is discussed in the documents such as CN201620011636.0, typically, 6~12 meters of electric motor coach electric powered steering motors are in 1~3KW.
Chinese patent CN201511002908.7 discloses a kind of integral new-energy passenger brush DC type electric hydaulic power-assisted turn
To pump and its control method, in the program, car is equipped with the angular transducer of detection direction disk rotational angle, obtains work as in real time
Front direction disk corner value, and detect whether current steering wheel angle value is greater than set angle angle value, steering controller is believed according to angle
The revolving speed of number closed-loop control steering motor assembly.
Pure electric coach vehicle opens door pump and braking gas source is usually generated by electric compressor, 6~12 meters of pure electric vehicles
The typical electric compressor of car is between 1.5~4KW, as described in Chinese patent CN201610003583.2.
Air compressor machine and electric hydraulic power-assisted steering pump are respectively by independent DC/AC inverter by vehicle DC power supply (allusion quotation
Offset is between 336~630V) inversion is to drive respective motor and independent control after alternating current.The dispersion of its component, system collection
At low and at high cost (two independent DC/AC inverter higher costs) is spent, occupies vehicle effective volume and increase weight.
Also have by the way of combination pump, as described in Chinese patent CN201510781319.7, by two independent DC/AC
Inverter and motor are integrated into 1 inverter and 1 motor, and for the motor by Driven by inverter, motor output point is multiple with water oil
It closes pump to be connected, and passes through clutch output driving air compressor machine.The program is reducing 1 DC/AC inversion relative to above-mentioned case
Device and 1 motor, reduce volume, weight and reduce costs.In the program, driving motor uses common 5kW
DC/AC transducer drive, the motor are not used to driving vehicle transmission system (i.e. driving vehicle operation)；Air pump, water oil combination pump
Can not be full decoupled, that is, it cannot achieve and only air compressor machine allowed to work, and the mode that water oil combination pump is closed, if vehicle air pressure is insufficient,
Even if without the demand of steering, water oil combination pump can not also be closed.
Chinese patent CN201610652069.1 proposes a kind of in gearbox output two-way energy stream mode, the first output shaft
Transmit power and give the operating of vehicle rear axle rear-guard motor car wheel, the second output shaft by power takeoff and transmission shaft export energy to steering/
Air compressor machine integration pump eliminates 2 DC/DC and 2 low-power machines.The program exists as following drawbacks:
1) based on traditional air compressor machine and steering pump, in no components newly developed, there are loads can not adjust feelings
Condition, i.e., in continuous driving, air compressor machine has not needed work, but turning to cannot close, if vehicle air pressure at this time is sufficient
Enough, air compressor machine cannot close, and can only unload in such a way that air valve is deflated, still 8~12% rated power load of loss；
2) or air compressor machine needs work, and vehicle is in operating condition of running at high speed, according to automobile theory it is found that vehicle is real at this time
Steering torque demand needed for border is little, but since steering pump is fixedly connected by transmission shaft, can not turn down steering-load at this time, no
It is able to achieve according to speed dynamic regulation steering power function, is unfavorable for energy conservation.
3) program traction electric machine and vehicle transmission system direct-coupling, it is undeclared spin when whether original place being supported not drive a vehicle to
Situation only needs to spin to traction electric machine must operate, and vehicle inherently moves, and cannot achieve original place if original place is not driven a vehicle
It turns to.Actually when workshop gap is smaller before and after the locations such as narrow city parking position, vehicle distances, there are pivot studs
Possibility, wheel does not allow to move (be easy with other vehicle contacts) at this time, it is necessary to original place spin to.
Summary of the invention
The purpose of the present invention is to provide a kind of electric motor coach steering pump and air compressor machine power taking systems and its control method, should
System turns to directly from automatic gear-box power taking and braking function can be carried out independently.
To achieve the above object, the electric motor coach steering pump and air compressor machine power taking system designed by the present invention, including vehicle
Controller (Vehicle control unit, abbreviation VCU), traction electric machine and its controller, automatic gear-box, air compressor machine ontology
(referring to the air compressor machine without motor), steering pump ontology (referring to the hydraulic steering pump without motor), power takeoff, first gear, second
Gear, the first magnetic powder cluth and the second magnetic powder cluth；The power takeoff is connected with the jackshaft of automatic gear-box, for from
Automatic gear-box obtains power；The output end of power takeoff is arranged in the first gear, second gear side by side；First magnetic
The input shaft of powder clutch is connected with first gear, the output shaft of first magnetic powder cluth and the input terminal of air compressor machine ontology
It is connected；The input shaft of second magnetic powder cluth is connected with second gear, the output shaft of second magnetic powder cluth with turn
It is connected to the input terminal of pump ontology；The traction motor controller, automatic gear-box, the first magnetic powder cluth and the second magnetic powder from
The respective communication control interface of clutch is connected with entire car controller respectively.
Invention also provides aforementioned electric motor coach steering pump and the control methods of air compressor machine power taking system, including pneumatics
Machine rate-determining steps and steering pump rate-determining steps, the air compressor machine rate-determining steps pass through the first magnetic powder cluth of vehicle control unit controls
Combination degree be maintained at braking pressure in required range to adjust the input speed of air compressor machine ontology；The steering pump
Rate-determining steps are by the importation of the second magnetic powder cluth of vehicle control unit controls and the combination degree of output par, c, to adjust
The input speed of steering pump ontology provides the steering force of required size.
Preferably, the air compressor machine rate-determining steps include:
1) before vehicle start, if entire car controller detects braking pressure deficiency, do not allow to drive a vehicle, entire car controller is neglected
It slightly puts into gear and operates and automatic gear-box is made to be maintained at neutral gear；After driver's bend the throttle, traction electric machine idle running, full-vehicle control
Device, which controls the first magnetic powder cluth excitation, is engaged the importation of the latter and output par, c, the torque of traction electric machine via
Automatic gear-box, power takeoff, first gear, the first magnetic powder cluth pass to air compressor machine ontology, drive the operating of air compressor machine ontology,
Improve braking pressure；Air pressure to be braked is increased to meet safety requirements after, recovery is put into gear function, and vehicle driving is allowed；
2) in driving conditions, the exciting current size of the first magnetic powder cluth of vehicle control unit controls (can be encouraged by changing
Magnetic current duty cycle adjusts) adjust the combination degree of magnetic powder cluth, and then the input speed of air compressor machine ontology is adjusted, make
Braking pressure is kept within the required range；
Preferably, the steering pump rate-determining steps include:
1) entire car controller judges Vehicular turn mode, can specifically be judged by steering wheel angle sensor
Or the method provided through the invention is judged；
2) if in activation pattern is turned to, vehicle control unit controls the second magnetic powder cluth excitation makes the importation of the latter
It is engaged with output par, c, traction electric machine torque is via automatic gear-box, power takeoff, second gear, the second magnetic powder cluth
Steering pump ontology is passed to, power steering is activated；The exciting current size that entire car controller passes through the second magnetic powder cluth of control
(can be adjusted by changing exciting current duty ratio) adjusts the combination degree of second magnetic powder cluth, and then adjusts steering pump
The input speed of ontology obtains required steering force；
If 3) in mode is steered off, the exciting current of the second magnetic powder cluth of vehicle control unit controls is minimized,
Make importation and the output par, c separation of the second magnetic powder cluth, steering pump ontology does not work at this time.
Preferably, in the air compressor machine rate-determining steps, when improving braking pressure before vehicle start, vehicle control unit controls
Traction electric machine is in constant rotational speed, and the first magnetic powder cluth exciting current is made to reach maximum, the input of the first magnetic powder cluth
It is fully engaged against with output par, c, improves braking pressure quickly, reduce driver's waiting time.
Preferably, the steering activation pattern is divided into pivot stud mode and driving steering pattern；If detecting while full
Sufficient the following conditions: a) high pressure powers on success, b) parking switch is effective, c) driver hangs neutral gear, d) brake pedal aperture is 0, e)
Accelerator pedal aperture, which is greater than the set value, makes it have biggish aperture, f) automatic gear-box output shaft revolving speed be 0, then activate original place
Steering pattern；If detect while meeting the following conditions: I) high pressure powers on success, II) parking switch releases, III) accelerator pedal
Perhaps the aperture of brake pedal is not 0 IV) driver hangs forward gear or reverse gear shift, V) self-changing gearbox input shaft, output
Axis revolving speed is not 0, then activates driving steering pattern.
Explanation about aperture: accelerator pedal, brake pedal aperture be less than setting minimum opening value (such as 1%) when recognize
Be 0 for aperture, more than or equal to setting minimum opening value when think aperture not and be 0 or be greater than 0.
Preferably, if detect vehicle accelerator pedal aperture, brake pedal aperture, automatic gear-box output shaft revolving speed and from
Dynamic transmission input shaft revolving speed is 0, and parking switch is effective, then enters and steer off mode.
Preferably, when pivot stud mode activation, vehicle control unit controls traction electric machine is in constant rotational speed, and makes second
Magnetic powder cluth exciting current reaches maximum, and the second magnetic powder cluth outputs and inputs part and is fully engaged against, biggish to provide
Steering force, to meet pivot stud demand.
Preferably, in driving conditions, entire car controller is pre-established according to the lookup of the output shaft revolving speed of automatic gear-box
The MAP chart table of automatic gear-box output shaft revolving speed the-the second magnetic powder cluth exciting current duty ratio, in real time adjust the second magnetic powder from
The exciting current of clutch.
Preferably, in driving conditions, entire car controller is searched pre- according to the output shaft revolving speed of braking pressure, automatic gear-box
The braking pressure first established-automatic gear-box output shaft revolving speed the-the first magnetic powder cluth exciting current duty ratio MAP chart table,
The exciting current of the first magnetic powder cluth of adjustment in real time.When usual output shaft of gear-box revolving speed is lower and braking pressure is relatively low,
Vehicle control unit controls the first magnetic powder cluth duty is bigger, when output shaft of gear-box revolving speed is medium and higher and braking pressure
When higher, vehicle control unit controls the first magnetic powder cluth duty is smaller.
Preferably, when braking pressure is excessively high, such as vehicle control unit controls first when detecting braking pressure close to the upper limit
Magnetic powder cluth exciting current is gradually reduced, and keeps minimum exciting current after reaching the upper limit；Automatic gear-box output shaft turn up
To after higher rotation speed, vehicle control unit controls the second magnetic powder cluth exciting current is smaller value；Ensure steering pump ontology and sky
Press ontology energy consumption is minimum.
Preferably, before vehicle start, when air compressor machine ontology or this body running of steering pump, traction electric machine is in revolving speed control mould
Formula；In driving conditions, in addition to traction electric machine is in rotating speed control mode when gear shift operation, other times are in direct torque mould
Formula.
The beneficial effects of the present invention are:
1) present invention by using electric motor coach after automatic gear-box jackshaft power taking by power takeoff and two gears,
Two magnetic powder cluths are independently embodied as air compressor machine ontology and steering pump ontology provides power, while automatic gear-box output shaft connects
Connect transmission shaft rear-guard motor-car forward or backward；
2) vehicle control unit controls traction electric machine is in revolving speed or torque mode, and cooperation automatic gear-box shift control is realized
Pivot stud, original place drive air compressor machine ontology, in driving can dynamic regulation steering pump ontology and air compressor machine this Systemic Burden, steering pump
Ontology and air compressor machine ontology independently decouple, and flexibility is high.
3) relative to existing electric powered steering pump and electric compressor scheme, it is inverse that the present invention reduces by two independent DC/AC
Become device and two small-power steering pumps or air compressor motor, optimizes arrangement space, alleviate complete vehicle weight, and effectively drop
Low cost.
Detailed description of the invention
Fig. 1 is electric motor coach steering pump designed by the present invention and the structural schematic diagram of air compressor machine power taking system.
Fig. 2 is the exciting current and torque song of magnetic powder cluth (including the first magnetic powder cluth and the second magnetic powder cluth)
Line.
Fig. 3 is that braking pressure-automatic gear-box output shaft revolving speed the-the first magnetic powder cluth exciting current duty ratio MAP shows
It is intended to, the specific values such as D11 (Duty cycle duty ratio) are measured by test in figure, are become according to vehicle own situation.
Fig. 4 is the MAP schematic diagram of automatic gear-box output shaft revolving speed the-the second magnetic powder cluth exciting current duty ratio.
Fig. 5 is the logical flow chart of vehicle control unit controls the first magnetic powder cluth exciting current function.
Fig. 6 is the logical flow chart of vehicle control unit controls turning function state switching.
Wherein: entire car controller 101, traction electric machine 201, traction motor controller 202, automatic gear-box 301, power takeoff
302, transmission shaft 401, vehicle drive axle 501, first gear 601, second gear 602, the first magnetic powder cluth 701, the second magnetic
Powder clutch 702, air compressor machine ontology 801, steering pump ontology 802
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, electric motor coach steering pump designed by the present invention and air compressor machine power taking system, including entire car controller
101 (Vehicle control unit, lower abbreviation VCU), traction electric machine 201 (contain traction motor controller 202), fluid drive
Case 301, power takeoff 302, first gear 601, second gear 602, the first magnetic powder cluth 701, air compressor machine ontology 801 is (in Fig. 1
Air compressor machine), the second magnetic powder cluth 702 and steering pump ontology 802 (steering pump in Fig. 1).
Wherein, traction motor inverter output three-phase alternating current electric drive traction electric machine 201 work, traction electric machine 201 it is defeated
Shaft is connected with the input shaft of automatic gear-box 301；The output of automatic gear-box 301 is two-way, and the first via passes through fluid drive
Vehicle drive axle 501 (preceding bridge or rear axle) is reconnected after output shaft (being influenced by gear) the connection transmission shaft 401 of case 301；The
Two routings gearbox jackshaft (not influenced by gear) connect power takeoff 302, and power takeoff 302 exports again gives first gear 601 He
Second gear 602, first gear 601 connect 701 input shaft of the first magnetic powder cluth, and 701 output shaft of the first magnetic powder cluth connects
Air compressor machine ontology 801 is connect, air compressor machine ontology 801 exports compressed air to vehicle air accumulator and (is not drawn into figure)；Second gear 602
702 input shaft of the second magnetic powder cluth is connected, 702 output shaft of the second magnetic powder cluth is connected with 802 input terminal of steering pump ontology.
Automatic gear-box 301 is in when reversing gear, steering phase of the traction electric machine 201 in vehicle backing operating condition and advance operating condition
Together, it is ensured that steering pump ontology 802 and air compressor machine ontology 801 turn to identical in advance and reversing.Automatic gear-box 301 is in sky
When gear, still output shaft of gear-box revolving speed is 0 to the rotation of traction electric machine 201, and vehicle, which does not advance, also not to fall back, and pirouette may be implemented
To with inflate.
Magnetic powder cluth by VCU adjust exciting current very easily control torque transfer, as shown in Fig. 2, magnetic powder from
It is in good linear relationship that clutch, which transmits torque with exciting current, directly proportional in quite wide range to exciting current.By
In torque be the foundation with exciting current and magnetic field and establish, by one section it is extremely short without the response time after, substantially by linear
What rule rose.
Traction motor controller 202, automatic gear-box 301, the first magnetic powder cluth 701 and the second magnetic powder cluth 702
Respective communication control interface (communication interface or control interface) is connected with entire car controller 101 respectively.VCU controls fluid drive
Case 301 is in neutral gear (N) or forward gear (D) or reverses gear (R), and parses driver's drive demand control traction motor controller
202 work.The output of pulse signal that the output shaft speed sensor of automatic gear-box 301 issues gives VCU pulse acquisition circuit,
VCU calculates the revolving speed and obtains 201 revolving speed of the traction electric machine i.e. input shaft rotating speed of automatic gear-box 301 according to CAN message.
Entire car controller 101 obtains the air pressure of vehicle brake piping (i.e. braking pressure), can pass through instrument to collect brake pipe
It is obtained, can also be obtained by itself analog acquisition of entire car controller 101 by CAN message after the air pressure of road.
Traction motor controller 202 has revolving speed and torque control model, is in torque in addition to shift in normal driving
Control model.Whether VCU according to vehicle brake piping atmospheric pressure value and is pivot stud mode requirement control when starting stage does not drive a vehicle
Traction motor controller 202 processed is in rotating speed control mode, i.e. traction electric machine 201 is in constant rotational speed operating.
The present embodiment additionally provides the control method of aforementioned electric motor coach steering pump and air compressor machine power taking system, including pneumatics
Machine rate-determining steps and steering pump rate-determining steps, are described as follows.
1) air compressor machine rate-determining steps:
As shown in figure 5, before vehicle start, if high pressure powers on success, if entire car controller 101 detects braking pressure not
Foot, then do not allow to drive a vehicle, even if driver hangs forward gear (D) or reverses gear (R), entire car controller 101 can also ignore the behaviour that puts into gear
Make, while automatic gear-box 301 being made to be maintained at neutral gear, and prompts braking pressure insufficient in instrument.Driver steps on acceleration and steps on
(after section (0~80%] in), traction electric machine 201 dallies aperture plate at setting speed (representative value such as 1800rpm).Vehicle control
Device 101 processed, which controls 701 excitation of the first magnetic powder cluth, is engaged the importation of the latter and output par, c, traction electric machine
201 torque passes to pneumatics via automatic gear-box 301, power takeoff 302, first gear 601, the first magnetic powder cluth 701
Machine ontology 801 drives air compressor machine ontology 801 to operate, and improves braking pressure.To improve braking pressure as early as possible, driver etc. is reduced
To the time, during being somebody's turn to do, control 701 exciting current of the first magnetic powder cluth reaches maximum, the input of the first magnetic powder cluth 701
It is fully engaged against with output par, c.Air pressure to be braked is increased to meet safety requirements after, recovery is put into gear function, allow vehicle driving,
Driver, which needs to hang D gear or R gear again, to drive a vehicle.Why need to put into gear again, be asked when driver is initial in order to prevent
Seek forward gear, it is invalid that entire car controller is thought to put into gear, and air pressure has made entire car controller effective vehicle of thinking to put into gear and entered advance
Gear pattern is not discovered if driver steps on accelerator pedal air pressure and makes to settle, it is easy to cause vehicle preshoot, generate dangerous.
In driving conditions, entire car controller 101 controls the exciting current size of the first magnetic powder cluth 701 to adjust magnetic powder
The combination degree of clutch, and then the input speed of air compressor machine ontology 801 is adjusted, keep braking pressure within the required range.
2) steering pump rate-determining steps:
Entire car controller 101 judges Vehicular turn mode.
If entire car controller 101, which controls 702 excitation of the second magnetic powder cluth, makes the input of the latter in activation pattern is turned to
Part and output par, c are engaged, and 201 torque of traction electric machine is via automatic gear-box 301, power takeoff 302, second gear
602, the second magnetic powder cluth 702 passes to steering pump ontology 802, activates power steering.Entire car controller 101 passes through control the
The exciting current size of two magnetic powder cluths 702 adjusts the combination degree of the second magnetic powder cluth 702, and then adjusts steering pump
The input speed of ontology obtains required steering force.
If the exciting current that entire car controller 101 controls the second magnetic powder cluth 702 is down to most in the mode that steers off
It is small, make importation and the output par, c separation of the second magnetic powder cluth 702, steering pump ontology 802 does not work at this time.
The judgement of steering pattern and its switching time, conventional method pass through installation direction disk rotary angle transmitter and its attached machine
Structure is fed back.For the vehicle of non-installation direction disk rotary angle transmitter and its subsidiary body, method as shown in FIG. 6 can be used
Judged, be described as follows:
If detecting vehicle accelerator pedal aperture, brake pedal aperture, automatic gear-box output shaft revolving speed and fluid drive
Case input shaft rotating speed is 0, and parking switch is effective, then enters and steer off mode.It turns to activation pattern and is divided into pivot stud
Mode and driving steering pattern mode.
If detect while meeting the following conditions: a) high pressure powers on success, b) parking switch is effective, c) driver hang it is empty
Gear, d) brake pedal aperture be 0, e) accelerator pedal aperture 80%~100%, f) automatic gear-box output shaft revolving speed be 0, then swash
Pivot stud mode living.The control of entire car controller 101 second magnetic powder cluth, 702 duty ratio reaches maximum at this time, realizes complete
Occlusion, and control traction motor controller and be in rotating speed control mode, it works in aforementioned setting speed.
If detect while meeting the following conditions: I) high pressure powers on success, II) parking switch releases, III) accelerator pedal or
The aperture of person's brake pedal is not 0, IV) driver hangs forward gear or reverse gear shift, V) self-changing gearbox input shaft, output shaft
Revolving speed is not 0, then activates driving steering pattern.
When the above trigger condition is not fully met, state where maintaining is constant, is detailed in state switching figure described in Fig. 6.
The steering pattern judgment method is according to parking switch, acceleration and brake pedal, transmission input shaft output shaft revolving speed
Judge that driver turns to demand, eliminates steering wheel angle sensor and the subsidiary body of higher cost Deng indirectly.
3) energy optimization of air compressor machine, steering pump
As shown in figure 3, entire car controller 101 is according to braking pressure, the output shaft of automatic gear-box 301 in driving conditions
Revolving speed searches braking pressure-automatic gear-box output shaft revolving speed the-the first magnetic powder cluth exciting current duty ratio pre-established
MAP chart table, in real time adjust the first magnetic powder cluth 701 exciting current.The MAP chart table by test determine, can be used as
Lower method: control automatic gear-box output shaft adjusts the exciting current of the first magnetic powder cluth in a certain revolving speed, is guaranteeing to brake
Under the premise of effect and other gas supply demands, minimum exciting current duty ratio is obtained；Turn in different automatic gear-box output shafts
It is tested under speed, obtains the MAP chart table sufficiently optimized to air compressor machine energy consumption.The first magnetic is adjusted referring to the MAP chart table in driving
The exciting current of powder clutch can significantly reduce the energy consumption of air compressor machine ontology.
As shown in figure 4, entire car controller 101 is searched pre- according to the output shaft revolving speed of automatic gear-box 301 in driving conditions
The MAP chart table for automatic gear-box output shaft revolving speed the-the second magnetic powder cluth exciting current duty ratio first established adjusts in real time
The exciting current of two magnetic powder cluths 702.The MAP chart table is determined by test, and following method can be used: control automatic gear-box
Output shaft adjusts the exciting current of the second magnetic powder cluth in a certain revolving speed, under the premise of guaranteeing turning efficiency, obtains minimum
Exciting current duty ratio；It is tested, is obtained sufficiently excellent to steering pump energy consumption under different automatic gear-box output shaft revolving speeds
The MAP chart table of change.The exciting current for adjusting the second magnetic powder cluth in driving referring to the MAP chart table, can significantly reduce steering
Pump the energy consumption of ontology.
When original place is inflated with pivot stud, traction electric machine 201 works in low load area, and efficiency is slightly lower, and two kinds of operating conditions occur
Ratio is seldom (since vehicle is equipped with air accumulator, unless vehicle gas leakage just will appear the situation of braking pressure deficiency), to whole system
Performance of uniting influences little.
Claims (7)
1. the control method of a kind of electric motor coach steering pump and air compressor machine power taking system, it is characterised in that:
Using following electric motor coach steering pump and air compressor machine power taking system: including entire car controller (101), traction electric machine
(201), automatic gear-box (301), air compressor machine ontology (801) and steering pump ontology (802), traction electric machine (201) setting
There are traction motor controller (202)；It is characterized by: the system further includes power takeoff (302), first gear (601), the second tooth
Take turns (602), the first magnetic powder cluth (701) and the second magnetic powder cluth (702)；The power takeoff (302) and automatic gear-box
(301) jackshaft is connected, for obtaining power from automatic gear-box (301)；The first gear (601), second gear
(602) output end of power takeoff (302) is set side by side；The input shaft and the first tooth of first magnetic powder cluth (701)
It takes turns (601) to be connected, the output shaft of first magnetic powder cluth (701) is connected with the input terminal of air compressor machine ontology (801)；It is described
The input shaft of second magnetic powder cluth (702) is connected with second gear (602), the output of second magnetic powder cluth (702)
Axis is connected with the input terminal of steering pump ontology (802)；The traction motor controller (202), automatic gear-box (301), first
Magnetic powder cluth (701) and the second magnetic powder cluth (702) respective communication control interface respectively with entire car controller (101) phase
Even；
This method includes air compressor machine rate-determining steps and steering pump rate-determining steps；
The air compressor machine rate-determining steps are come by the combination degree of entire car controller (101) control the first magnetic powder cluth (701)
The input speed for adjusting air compressor machine ontology (801) is maintained at braking pressure in required range；
The steering pump rate-determining steps by entire car controller (101) control the second magnetic powder cluth (702) importation and
The combination degree of output par, c provides the steering force of required size to adjust the input speed of steering pump ontology (802)；
The steering pump rate-determining steps specifically include:
1) entire car controller (101) judges Vehicular turn mode, and the Vehicular turn mode is divided into steering activation pattern
With steer off mode；
The steering activation pattern is divided into pivot stud mode and driving steering pattern；If detect while meeting the following conditions:
A) high pressure powers on success, b) parking switch is effective, c) driver hangs neutral gear, d) brake pedal aperture is 0, e) accelerator pedal aperture
Be greater than the set value, f) automatic gear-box output shaft revolving speed be 0, then activate pivot stud mode；If detect while meeting following
Condition: I) high pressure powers on success, II) parking switch releases, III) aperture of accelerator pedal or brake pedal is not 0, IV) drive
The person of sailing hangs forward gear or reverse gear shift, V) self-changing gearbox input shaft, output shaft revolving speed be not 0, then activate driving to turn to mould
Formula；
If 2) in turning to activation pattern, entire car controller (101) control the second magnetic powder cluth (702) excitation makes that the latter's is defeated
Enter part and output par, c is engaged, traction electric machine (201) torque is via automatic gear-box (301), power takeoff (302), the
Two gears (602), the second magnetic powder cluth (702) pass to steering pump ontology (802), activate power steering；Entire car controller
(101) combination of the second magnetic powder cluth (702) is adjusted by controlling the exciting current size of the second magnetic powder cluth (702)
Degree, and then the input speed of steering pump ontology is adjusted, obtain required steering force；
3) if in the mode that steers off, the exciting current of entire car controller (101) control the second magnetic powder cluth (702) is down to
Minimum makes importation and the output par, c separation of the second magnetic powder cluth (702), and steering pump ontology (802) does not work at this time.
2. the control method of electric motor coach steering pump according to claim 1 and air compressor machine power taking system, it is characterised in that:
The air compressor machine rate-determining steps include:
1) before vehicle start, if entire car controller (101) detects braking pressure deficiency, do not allow to drive a vehicle, entire car controller
(101) ignore to put into gear and operate and automatic gear-box (301) is made to be maintained at neutral gear；After driver's bend the throttle, traction electric machine
(201) it dallies, entire car controller (101) control the first magnetic powder cluth (701) excitation makes the importation and output section of the latter
Point be engaged, the torque of traction electric machine (201) via automatic gear-box (301), power takeoff (302), first gear (601),
First magnetic powder cluth (701) passes to air compressor machine ontology (801), drives air compressor machine ontology (801) operating, improves braking gas
Pressure；Air pressure to be braked is increased to meet safety requirements after, recovery is put into gear function, and vehicle driving is allowed；
2) in driving conditions, entire car controller (101) controls the exciting current size of the first magnetic powder cluth (701) to adjust magnetic
The combination degree of powder clutch, and then the input speed of air compressor machine ontology (801) is adjusted, so that braking pressure is maintained at required range
It is interior.
3. the control method of electric motor coach steering pump according to claim 2 and air compressor machine power taking system, it is characterised in that:
In the air compressor machine rate-determining steps, when improving braking pressure before vehicle start, entire car controller (101) controls traction electric machine
(201) it is in constant rotational speed, and the first magnetic powder cluth (701) exciting current is made to reach maximum, the first magnetic powder cluth (701)
Output and input part be fully engaged against, make braking pressure as early as possible speed improve.
4. the control method of electric motor coach steering pump according to claim 1 and air compressor machine power taking system, it is characterised in that:
If detecting vehicle accelerator pedal aperture, brake pedal aperture, automatic gear-box output shaft revolving speed and self-changing gearbox input shaft
Revolving speed is 0, and parking switch is effective, then enters and steer off mode.
5. the control method of electric motor coach steering pump according to claim 1 and air compressor machine power taking system, it is characterised in that:
When pivot stud mode activation, entire car controller (101) control traction electric machine is in constant rotational speed, and makes the second magnetic powder cluth
(702) exciting current reaches maximum, and the second magnetic powder cluth (702) outputs and inputs part and is fully engaged against, biggish to provide
Steering force.
6. the control method of electric motor coach steering pump according to claim 1 and air compressor machine power taking system, it is characterised in that:
When steering pattern of driving a vehicle activation, entire car controller (101) is pre-established according to the lookup of the output shaft revolving speed of automatic gear-box (301)
Automatic gear-box output shaft revolving speed the-the second magnetic powder cluth exciting current duty ratio MAP chart table, in real time adjust the second magnetic powder
The exciting current of clutch (702).
7. the control method of electric motor coach steering pump according to claim 2 and air compressor machine power taking system, it is characterised in that:
In driving conditions, entire car controller (101) is built in advance according to the lookup of the output shaft revolving speed of braking pressure, automatic gear-box (301)
Vertical braking pressure-automatic gear-box output shaft revolving speed the-the first magnetic powder cluth exciting current duty ratio MAP chart table, in real time
Adjust the exciting current of the first magnetic powder cluth (701).
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| CN201710344754.2A CN107187314B (en) | 2017-05-16 | 2017-05-16 | Electric motor coach steering pump and air compressor machine power taking system and its control method |
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| CN201710344754.2A CN107187314B (en) | 2017-05-16 | 2017-05-16 | Electric motor coach steering pump and air compressor machine power taking system and its control method |
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| CN107187314B true CN107187314B (en) | 2019-06-07 |
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| CN108238044B (en) * | 2018-01-31 | 2023-09-01 | 瑞立集团瑞安汽车零部件有限公司 | Energy-saving electric air compressor and steering oil pump control system |
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| CN103287260A (en) * | 2013-05-21 | 2013-09-11 | 潍柴动力股份有限公司 | Hybrid electric vehicle and driving device thereof |
| CN203372285U (en) * | 2013-06-14 | 2014-01-01 | 浙江吉利汽车研究院有限公司杭州分公司 | Automatic-control power-assisted steering pump system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CH675229A5 (en) * | 1989-03-29 | 1990-09-14 | Eredi Fu Pietro Zanzi | Versatile load carrying vehicle - has power transmission system with gearbox, clutch, double PTO, reversing and speed reduction sections |
| JP2969594B1 (en) * | 1998-10-02 | 1999-11-02 | 株式会社プロジェット | Work vehicle with auxiliary traveling device |
| US20060137484A1 (en) * | 2004-12-28 | 2006-06-29 | Seipold John M | Rear power takeoff |
| CN201109368Y (en) * | 2007-11-30 | 2008-09-03 | 湖北亚川汽车齿轮集团有限公司 | Power take-off device for gear box of cleaning vehicle |
| CN201610080U (en) * | 2010-01-13 | 2010-10-20 | 中国重汽集团济南动力有限公司 | Direct-connected power takeoff assembly |
| CN105437958A (en) * | 2014-09-30 | 2016-03-30 | 包头市北工机械有限公司 | Energy-saving all-in-one machine for new energy vehicle |
| CN106080758A (en) * | 2016-08-10 | 2016-11-09 | 潍柴动力股份有限公司 | A kind of hybrid vehicle hydraulic steering pump and the optimization integrated morphology of air compressor machine |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103287260A (en) * | 2013-05-21 | 2013-09-11 | 潍柴动力股份有限公司 | Hybrid electric vehicle and driving device thereof |
| CN203372285U (en) * | 2013-06-14 | 2014-01-01 | 浙江吉利汽车研究院有限公司杭州分公司 | Automatic-control power-assisted steering pump system |
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Effective date of registration: 20220321 Address after: Building 3, Jinfeng Road, Dongfeng Automobile Avenue, high tech Zone, Xiangyang City, Hubei Province Patentee after: DONGFENG AUTOMOBILE Co.,Ltd. Address before: 441004 building 3, Jinfeng Road, Dongfeng Automobile Avenue, high tech Zone, Xiangfan City, Hubei Province Patentee before: DONGFENG XIANGYANG TOURING CAR Co.,Ltd. |