CN110509985A - A kind of application method of EHPS system - Google Patents
A kind of application method of EHPS system Download PDFInfo
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- CN110509985A CN110509985A CN201910676946.2A CN201910676946A CN110509985A CN 110509985 A CN110509985 A CN 110509985A CN 201910676946 A CN201910676946 A CN 201910676946A CN 110509985 A CN110509985 A CN 110509985A
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- motor
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- vehicle
- pressure controller
- power supply
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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
Abstract
A kind of application method of EHPS system, including high-pressure work mode and operating on low voltage mode, wherein, high-pressure work mode refers to: the DC conversion that high voltage power supply provides is alternating current to be supplied to motor by dual pressure controller, dual pressure controller carries out mutual signal through high-voltage signal line and vehicle CAN bus and transmits, and motor successively carries out mutual signal transmitting after connecting line outside low pressure controller, signal with vehicle CAN bus；Operating on low voltage mode refers to: when high-pressure work mode breaks down, vehicle CAN bus is powered through dual pressure controller cutoff high power supply to motor, and through the circuit between low pressure controller conducting low-tension supply, motor, to be powered from low-tension supply through low pressure controller to motor.Not only emergency flight control effect is preferable by the design, but also it is smaller to take up space, and degree of protection is higher.
Description
Technical field
The present invention relates to a kind of course changing control technologies, belong to automobile steering system technical field more particularly to a kind of EHPS
The application method of system, it is particularly applicable to enhance emergency flight control effect.
Background technique
EHPS system, i.e. electric hydraulic power-assisted steering system are commonly used in the steering system of each electric car, the system
It is general to use single source electric powered steering oil pump assy, it has the disadvantage in that
When vehicle high voltage power battery between single source electric powered steering oil pump harness or high voltage control strategy when something goes wrong, it is single
Source electric powered steering oil pump assy will stop working or occur abnormal phenomenon, to influence the turning function normally driven a vehicle, even
It will cause traffic accident.
Application publication number is CN105109546A, and data of publication of application is that the application for a patent for invention on December 02nd, 2015 is public
A kind of Dual-energy source electric hydraulic power-assisted steering system is opened comprising high voltage power supply, emergency power supply, is answered at high pressure steering controller
Anxious steering controller and steering motor, high voltage power supply and high pressure steering controller are as main source of energy part, emergency power supply and emergency
Steering controller is as auxiliary energy part.Although the design can start auxiliary energy part when main source of energy part is broken down
Emergency use, vehicle nothing in inertia or descending turns when perhaps failing to avoid main power steering part catastrophic failure
To the dangerous situation of power-assisted, but it still has the disadvantage that
High pressure steering controller, emergency steering controller in the design are only responsible for the conversion of control high voltage power supply, emergency power supply,
And cannot be by high voltage power supply, the operating condition of emergency power supply, the operating condition of especially motor feeds back to entire car controller, unfavorable
In the monitoring of entire car controller, also it is unfavorable for entire car controller using timely, effective emergency flight control strategy, emergency flight control effect
It is poor.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that the information constitutes existing skill already known to those of ordinary skill in the art
Art.
Summary of the invention
The purpose of the present invention is overcome the problems, such as the poor defect of emergency flight control effect existing in the prior art and, provide one
The application method of the kind preferable EHPS system of emergency flight control effect.
In order to achieve the above object, the technical solution of the invention is as follows: a kind of application method of EHPS system, including high pressure
Operating mode and operating on low voltage mode；
The high-pressure work mode refers to: the DC conversion that high voltage power supply provides is alternating current to be supplied to by dual pressure controller
Motor, meanwhile, dual pressure controller carries out mutual signal through high-voltage signal line and vehicle CAN bus and transmits；In motor operation
In the process, motor successively carries out mutual signal transmitting after connecting line outside low pressure controller, signal with vehicle CAN bus；
The operating on low voltage mode refers to: when high-pressure work mode breaks down, vehicle CAN bus is cut off through dual pressure controller
High voltage power supply is powered to motor, meanwhile, the circuit between low-tension supply, motor is connected through low pressure controller for vehicle CAN bus, with
It is powered from low-tension supply through low pressure controller to motor, at this point, the DC conversion that low pressure controller provides low-tension supply is
Alternating current.
Described to refer to when high-pressure work mode breaks down: high voltage power supply breaks down to the harness between motor or high pressure
Control strategy breaks down.
The high voltage power supply breaks down to the harness between motor or the failure of high voltage control strategy refers to: existing and turns
It is down to switching value to the revolving speed of demand, but motor, at this time, it may be necessary to which operating mode is switched to operating on low voltage mode.
The EHPS system includes oil pump, motor, integrates shell, dual pressure controller and low pressure controller, the oil pump
Input shaft is connected with the output shaft of motor, and pump oil inlet is provided on oil pump and pumps out hydraulic fluid port, the integrated shell includes shell
Body and its shell chamber of internal setting, one end of the shell are connected with the body of motor, are provided with letter on the other end of shell
Number interface, high voltage power supply interface, low-tension supply interface are provided with low pressure controller in the shell chamber；
The motor successively after connecting line, dual pressure controller outside high pressure connection wire, high voltage power supply interface, high pressure with high-voltage electricity
Source is electrically connected, motor successively after connecting line outside low pressure connection wire, low pressure controller, low-tension supply interface, low pressure with
Low-tension supply is electrically connected, and motor is successively after connecting line outside signal connection wire, low pressure controller, signaling interface, signal
Signal connection is carried out with vehicle CAN bus, vehicle CAN bus carries out signal connection, institute through high-voltage signal line and dual pressure controller
State the inside that high pressure connection wire, low pressure connection wire, signal connection wire are all set to integrated shell, and integrated shell, electricity
Machine, oil pump are connected as one to constitute integrated form double source electric powered steering oil pump assy X.
The input shaft of the oil pump is connected by flexible clutch with the output shaft of motor, and the input shaft and electricity of oil pump
The output shaft of machine is coaxially arranged.
The motor includes motor stator, high-voltage motor rotor and low voltage motor rotor, and high-voltage motor rotor, low tension
Machine rotor shares a motor stator；
The high-voltage motor rotor is successively after connecting line, dual pressure controller outside high pressure connection wire, high voltage power supply interface, high pressure
It is electrically connected with high voltage power supply, the low voltage motor rotor successively connects through low pressure connection wire, low pressure controller, low-tension supply
It is electrically connected after the outer connecting line of mouth, low pressure with low-tension supply.
The high-voltage motor rotor, low voltage motor rotor constitute a concentric loop, the center of circle portion in the concentric loop altogether
Position is provided with motor stator, and high-voltage motor rotor, low voltage motor rotor are uniformly arranged along concentric loop.
The dual pressure controller includes the electric powered steering oil pump assy control module of All-in-One shell and its internal setting, electricity
Dynamic air compressor machine control module, vehicle motor control module, vehicle DCDC control module；
The electric powered steering oil pump assy control module carries out signal connection, the height through high-voltage signal line and vehicle CAN bus
Voltage source is successively electrically connected after connecting line outside electric powered steering oil pump assy control module, high pressure with high voltage power supply interface.
The electric compressor control module, vehicle motor control module, vehicle DCDC control module are all through high pressure
Signal wire and vehicle CAN bus carry out signal connection；
The electric compressor control module, vehicle motor control module, vehicle DCDC control module one end all with height
Voltage source is electrically connected, and the other end is all electrically connected through connecting line outside high pressure and high voltage power supply interface.
The pump oil inlet is connected through oil inlet pipe and steering reservoir, pumps out hydraulic fluid port and is connected through pressure duct and turning machine
Logical, turning machine is connected through oil return line and steering reservoir.
Compared with prior art, the invention has the benefit that
1, in a kind of application method of EHPS system of the present invention, including high-pressure work mode and operating on low voltage mode, both of which
Under, dual pressure controller, low pressure controller can carry out mutual signal transmitting, especially low pressure controller with vehicle CAN bus
The operating condition of motor and vehicle CAN bus can be subjected to signal transmitting, on the basis of the transmitting of these signals, once discovery is high
Operating mode is pressed to break down, vehicle CAN bus can then control the power supply of dual pressure controller cutoff high, then control low pressure controller
It is responsible for low-voltage power supply.As it can be seen that being carried out between dual pressure controller, low pressure controller and vehicle CAN bus in entire use process
Various signals transmitting, can not only be by the operating condition (such as revolving speed, runing time) of motor, the operation feelings of low pressure controller
Condition, the operating status of low-tension supply feed back to vehicle CAN bus in time, accurately, and can be by the feedback control of vehicle CAN bus
Signal (such as high-low pressure switching is shut down) processed is timely, accurately passes to dual pressure controller, low pressure controller, motor, improves low
Crush-cutting changes the efficiency of communication, to improve the effect of emergency flight control.Therefore, the present invention can be realized vehicle CAN bus and motor,
Mutual signal transmitting between low pressure controller, dual pressure controller, emergency flight control effect are preferable.
2, in a kind of application method of EHPS system of the present invention, integrated shell is had additional in EHPS system, this is integrated outer
Low pressure controller, high pressure connection wire, low pressure connection wire, signal connection wire are provided in shell, meanwhile, integrate shell, electricity
Machine, oil pump are connected as one to constitute integrated form double source electric powered steering oil pump assy, which has stronger integrated result, no
The overall volume of components can be only reduced, reduction takes up space, and facilitates arrangement, and can be by most connection wiring harness, especially
It is built in the connection wiring harness between motor and low pressure controller, and degree of protection and security level are higher.Therefore, the present invention is not only
It takes up space smaller, and degree of protection is higher.
3, in a kind of application method of EHPS system of the present invention, dual pressure controller includes All-in-One shell and its internal setting
Electric powered steering oil pump assy control module, electric compressor control module, vehicle motor control module, vehicle DCDC control
Molding block, the design use various control module intergration model, and not only function is more, but also simplifies overall structure, reduces
Cost, it is light-weight, it is small in size, facilitate arrangement.Therefore, function integration of the invention is stronger, convenient for arranging and reducing cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of EHPS system in the present invention.
Fig. 2 is the structural schematic diagram of integrated form double source electric powered steering oil pump assy in Fig. 1.
Fig. 3 is the structural schematic diagram of motor in the present invention.
Fig. 4 is the connection schematic diagram of motor and steering pump bracket in the present invention.
Fig. 5 is rotor, the stator schematic diagram in the present invention in motor.
Fig. 6 is the structural schematic diagram of mesohigh controller of the present invention.
Fig. 7 is the connection schematic diagram that shell and ground strap are integrated in the present invention.
In figure: steering reservoir 1, oil inlet pipe 11, oil return line 12, turning machine 2, pressure duct 21, oil pump 3, pump oil inlet
Mouth 31 pumps out hydraulic fluid port 32, flexible clutch 33, motor 4, body 41, motor stator 42, high-voltage motor rotor 43, low voltage motor
Rotor 44, concentric loop 45, transition bracket 46, vibration damping cushion 47, steering pump bracket 48, integrated shell 5, shell 51, shell chamber 52,
The outer connecting line 531 of signaling interface 53, signal, high voltage power supply interface 54, high pressure outer connecting line 541, low-tension supply interface 55, low pressure
Outer connecting line 551, high pressure connection wire 56, low pressure connection wire 57, signal connection wire 58, bonding line interface 59, ground strap
591, dual pressure controller 6, high-voltage signal line 61, All-in-One shell 62, electric powered steering oil pump assy control module 63, electronic pneumatics
Machine control module 64, vehicle motor control module 65, vehicle DCDC control module 66, other control modules 67, low pressure control
Device 7 processed, high voltage power supply 8, high-voltage power-line 81, low-tension supply 9, vehicle CAN bus 10, vehicle frame 13, integrated form double source electric rotating
To oil pump assy X.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Referring to Fig. 1 to Fig. 7, a kind of application method of EHPS system, including high-pressure work mode and operating on low voltage mode；
The high-pressure work mode refers to: the DC conversion that high voltage power supply 8 provides is alternating current to provide by dual pressure controller 6
To motor 4, meanwhile, dual pressure controller 6 carries out mutual signal through high-voltage signal line 61 and vehicle CAN bus 10 and transmits；In electricity
During machine 4 is run, motor 4 successively carries out phase with vehicle CAN bus 10 after connecting line 531 outside low pressure controller 7, signal
Mutual signal transmitting；
The operating on low voltage mode refers to: when high-pressure work mode breaks down, vehicle CAN bus 10 is through dual pressure controller 6
Cutoff high power supply 8 to motor 4 power, meanwhile, vehicle CAN bus 10 through low pressure controller 7 be connected low-tension supply 9, motor 4 it
Between circuit, to be powered from low-tension supply 9 through low pressure controller 7 to motor 4, at this point, low pressure controller 7 proposes low-tension supply 9
The DC conversion of confession is alternating current.
Described to refer to when high-pressure work mode breaks down: high voltage power supply 8 breaks down to the harness between motor 4 or height
Control strategy is pressed to break down.
The high voltage power supply 8 breaks down to the harness between motor 4 or the failure of high voltage control strategy refers to: existing
Steering demand, but the revolving speed of motor 4 is down to switching value, at this time, it may be necessary to which operating mode is switched to operating on low voltage mode.
The EHPS system includes oil pump 3, motor 4, integrated shell 5, dual pressure controller 6 and low pressure controller 7, the oil
The input shaft of pump 3 is connected with the output shaft of motor 4, and pump oil inlet 31 is provided on oil pump 3 and pumps out hydraulic fluid port 32, described integrated
Shell 5 includes the shell chamber 52 of shell 51 and its internal setting, and one end of the shell 51 is connected with the body 41 of motor 4, shell
It is provided with signaling interface 53, high voltage power supply interface 54, low-tension supply interface 55 on the other end of body 51, is arranged in the shell chamber 52
There is low pressure controller 7；
The motor 4 is successively through connecting line 541, dual pressure controller 6 outside high pressure connection wire 56, high voltage power supply interface 54, high pressure
Be electrically connected afterwards with high voltage power supply 8, motor 4 successively through low pressure connection wire 57, low pressure controller 7, low-tension supply interface 55,
Be electrically connected after the outer connecting line 551 of low pressure with low-tension supply 9, motor 4 successively through signal connection wire 58, low pressure controller 7,
Signal connection is carried out with vehicle CAN bus 10 after the outer connecting line 531 of signaling interface 53, signal, vehicle CAN bus 10 is believed through high pressure
Number line 61 and dual pressure controller 6 carry out signal connection, connection in the high pressure connection wire 56, low pressure connection wire 57, signal
Line 58 is all set to the inside of integrated shell 5, and integrated shell 5, motor 4, oil pump 3 are connected as one to constitute integrated form double source
Electric powered steering oil pump assy X.
The input shaft of the oil pump 3 is connected by flexible clutch 33 with the output shaft of motor 4, and the input of oil pump 3
The output shaft of axis and motor 4 is coaxially arranged.
The motor 4 includes motor stator 42, high-voltage motor rotor 43 and low voltage motor rotor 44, and high-voltage motor rotor
43, low voltage motor rotor 44 shares a motor stator 42；
The high-voltage motor rotor 43 is successively through connecting line 541, height outside high pressure connection wire 56, high voltage power supply interface 54, high pressure
It is electrically connected after pressure controller 6 with high voltage power supply 8, the low voltage motor rotor 44 is successively through low pressure connection wire 57, low pressure
It is electrically connected after the outer connecting line 551 of controller 7, low-tension supply interface 55, low pressure with low-tension supply 9.
The high-voltage motor rotor 43, low voltage motor rotor 44 constitute a concentric loop 45 altogether, in the concentric loop 45
Center of circle position be provided with motor stator 42, high-voltage motor rotor 43, low voltage motor rotor 44 are uniformly arranged along concentric loop 45.
The dual pressure controller 6 includes the electric powered steering oil pump assy control module of All-in-One shell 62 and its internal setting
63, electric compressor control module 64, vehicle motor control module 65, vehicle DCDC control module 66；
The electric powered steering oil pump assy control module 63 carries out signal connection through high-voltage signal line 61 and vehicle CAN bus 10,
The high voltage power supply 8 successively after connecting line 541 outside electric powered steering oil pump assy control module 63, high pressure with high voltage power supply interface
54 are electrically connected.
The electric compressor control module 64, vehicle motor control module 65, vehicle DCDC control module 66 are all
Signal connection is carried out through high-voltage signal line 61 and vehicle CAN bus 10；
One end of the electric compressor control module 64, vehicle motor control module 65, vehicle DCDC control module 66
It is all electrically connected with high voltage power supply 8, the other end is all electrically connected through connecting line 541 outside high pressure with high voltage power supply interface 54.
The pump oil inlet 31 is connected through oil inlet pipe 11 and steering reservoir 1, pump out hydraulic fluid port 32 through pressure duct 21 with
Turning machine 2 is connected, and turning machine 2 is connected through oil return line 12 and steering reservoir 1.
The principle of the present invention is described as follows:
EHPS system in the present invention includes dual pressure controller 6 and low pressure controller 7, and dual pressure controller 6, low pressure controller 7 are all
The function of having both power supply conversion (direct current is switched to alternating current) and signal transmitting, when normal work, dual pressure controller 6 is run,
But when what dual pressure controller 6 was responsible for when being driven by electricity failure, then controls low pressure by vehicle CAN bus 10 to motor 4
Controller 7 drives the low-voltage power that motor 4 is met an urgent need.
Dual pressure controller 6 in the present invention includes the electric powered steering oil pump assy control of All-in-One shell 62 and its internal setting
Molding block 63, electric compressor control module 64, vehicle motor control module 65, vehicle DCDC control module 66, wherein
Electric powered steering oil pump assy control module 63 includes two functions: exchange needed for the direct current of high voltage power supply 8 is switched to motor 4
Electricity；Mutual signal is carried out with vehicle CAN bus 10 to transmit.
Dual pressure controller 6 in the present invention successively connects in connecting line 541 outside high pressure, high voltage power supply interface 54, high pressure
It is connected after line 56 with motor 4, the connection line drawing-in shell chamber 52 that high voltage power supply interface 54, high pressure connection wire 56 are constituted
And mistake, not with the remaining part in shell chamber 52, such as 7 Xiang Hu Gan Wataru of low pressure controller.
Steering oil liquid stream in the present invention becomes high pressure after the oil pump 3 in integrated form double source electric powered steering oil pump assy X
Oil liquid enters turning machine 2, and 2 power-assisted of turning machine is made to work, and subsequently becomes low pressure oil liquid stream and returns steering reservoir 1.
Other control modules 67, other control modules 67 are also provided in All-in-One shell 62 in the present invention
Carry out signal connection through high-voltage signal line 61 and vehicle CAN bus 10, and the both ends of other control modules 67 respectively with high-voltage electricity
Source 8, the outer connecting line 541 of high pressure are electrically connected.
The bottom of motor 4 in the present invention is successively connected after transition bracket 46, vibration damping cushion 47 with steering pump bracket 48
It connects.It is provided with bonding line interface 59 on the side of shell 51 in the present invention, the bonding line interface 59 is through ground strap 591 and vehicle frame
13 are in contact.
Embodiment 1:
Referring to Fig. 1 to Fig. 7, a kind of application method of EHPS system, including high-pressure work mode and operating on low voltage mode；
The high-pressure work mode refers to: the DC conversion that high voltage power supply 8 provides is alternating current to provide by dual pressure controller 6
To motor 4, meanwhile, dual pressure controller 6 carries out mutual signal through high-voltage signal line 61 and vehicle CAN bus 10 and transmits；In electricity
During machine 4 is run, motor 4 successively carries out phase with vehicle CAN bus 10 after connecting line 531 outside low pressure controller 7, signal
Mutual signal transmitting；
The operating on low voltage mode refers to: when high-pressure work mode failure (preferably high voltage power supply 8 to the line between motor 4
Beam break down or high voltage control strategy break down) when, vehicle CAN bus 10 through 6 cutoff high power supply 8 of dual pressure controller to
Motor 4 is powered, meanwhile, the circuit between low-tension supply 9, motor 4 is connected through low pressure controller 7 for vehicle CAN bus 10, by low
Voltage source 9 is powered through low pressure controller 7 to motor 4, at this point, the DC conversion that low-tension supply 9 provides is by low pressure controller 7
Alternating current.
Embodiment 2:
Basic content with embodiment 1, the difference is that:
The high voltage power supply 8 breaks down to the harness between motor 4 or the failure of high voltage control strategy refers to: there is steering
Demand, but the revolving speed of motor 4 is down to switching value, at this time, it may be necessary to which operating mode is switched to operating on low voltage mode.
Embodiment 3:
Basic content with embodiment 1, the difference is that:
The EHPS system includes oil pump 3, motor 4, integrated shell 5, dual pressure controller 6 and low pressure controller 7, the oil pump 3
Input shaft be connected with the output shaft of motor 4, pump oil inlet 31 is provided on oil pump 3 and pumps out hydraulic fluid port 32, it is described integrated outer
Shell 5 includes the shell chamber 52 of shell 51 and its internal setting, and one end of the shell 51 is connected with the body 41 of motor 4, shell
It is provided with signaling interface 53, high voltage power supply interface 54, low-tension supply interface 55 on 51 other end, is provided in the shell chamber 52
Low pressure controller 7；The motor 4 is successively through connecting line 541, high pressure outside high pressure connection wire 56, high voltage power supply interface 54, high pressure
It is electrically connected after controller 6 with high voltage power supply 8, motor 4 is successively through low pressure connection wire 57, low pressure controller 7, low-tension supply
It is electrically connected after the outer connecting line 551 of interface 55, low pressure with low-tension supply 9, motor 4 is successively through signal connection wire 58, low pressure
Signal connection, vehicle CAN bus 10 are carried out with vehicle CAN bus 10 after the outer connecting line 531 of controller 7, signaling interface 53, signal
Signal connection, the high pressure connection wire 56, low pressure connection wire 57, letter are carried out through high-voltage signal line 61 and dual pressure controller 6
Number connection wire 58 is all set to the inside of integrated shell 5, and integrated shell 5, motor 4, oil pump 3 are connected as one to constitute collection
Accepted way of doing sth double source electric powered steering oil pump assy X.
Embodiment 4:
Basic content with embodiment 3, the difference is that:
The motor 4 includes motor stator 42, high-voltage motor rotor 43 and low voltage motor rotor 44, and high-voltage motor rotor 43,
Low voltage motor rotor 44 shares a motor stator 42；The high-voltage motor rotor 43 is successively through high pressure connection wire 56, high pressure
It is electrically connected after power interface 54, high pressure outer connecting line 541, dual pressure controller 6 with high voltage power supply 8, the low voltage motor turns
Son 44 successively after connecting line 551 outside low pressure connection wire 57, low pressure controller 7, low-tension supply interface 55, low pressure with low tension
Source 9 is electrically connected.
Embodiment 5:
Basic content with embodiment 3, the difference is that:
The dual pressure controller 6 include All-in-One shell 62 and its internal setting electric powered steering oil pump assy control module 63,
Electric compressor control module 64, vehicle motor control module 65, vehicle DCDC control module 66；The electric powered steering oil
Pump assembly control module 63 carries out signal connection through high-voltage signal line 61 and vehicle CAN bus 10, and the high voltage power supply 8 successively passes through
It is electrically connected after the outer connecting line 541 of electric powered steering oil pump assy control module 63, high pressure with high voltage power supply interface 54.The electricity
Dynamic air compressor machine control module 64, vehicle motor control module 65, vehicle DCDC control module 66 are all through high-voltage signal line 61
Signal connection is carried out with vehicle CAN bus 10；The electric compressor control module 64, vehicle motor control module 65,
One end of vehicle DCDC control module 66 is all electrically connected with high voltage power supply 8, and the other end is all through connecting line 541 outside high pressure and height
Piezoelectricity source interface 54 is electrically connected.
The foregoing is merely better embodiment of the invention, protection scope of the present invention is not with above embodiment
Limit, as long as those of ordinary skill in the art's equivalent modification or variation made by disclosure according to the present invention, should all be included in power
In the protection scope recorded in sharp claim.
Claims (10)
1. a kind of application method of EHPS system, it is characterised in that: the application method includes high-pressure work mode and low pressure work
Operation mode；
The high-pressure work mode refers to: the DC conversion that dual pressure controller (6) provides high voltage power supply (8) be alternating current with
It is supplied to motor (4), meanwhile, dual pressure controller (6) carries out mutual letter through high-voltage signal line (61) and vehicle CAN bus (10)
Number transmitting；During motor (4) are run, motor (4) successively after low pressure controller (7), the outer connecting line (531) of signal with
Vehicle CAN bus (10) carries out mutual signal transmitting；
The operating on low voltage mode refers to: when high-pressure work mode breaks down, vehicle CAN bus (10) is through dual pressure controller
(6) cutoff high power supply (8) is powered to motor (4), meanwhile, low tension is connected through low pressure controller (7) in vehicle CAN bus (10)
Circuit between source (9), motor (4), to be powered from low-tension supply (9) through low pressure controller (7) to motor (4), at this point, low pressure
The DC conversion that controller (7) provides low-tension supply (9) is alternating current.
2. a kind of application method of EHPS system according to claim 1, it is characterised in that: described to work as high-pressure work mode
Failure refers to: high voltage power supply (8) breaks down to the harness between motor (4) or high voltage control strategy breaks down.
3. a kind of application method of EHPS system according to claim 2, it is characterised in that: the high voltage power supply (8) is extremely
Harness between motor (4) breaks down or the failure of high voltage control strategy refers to: there are steering demand, but motor (4)
Revolving speed is down to switching value, at this time, it may be necessary to which operating mode is switched to operating on low voltage mode.
4. a kind of application method of EHPS system according to claim 1,2 or 3, it is characterised in that: the EHPS system
Including oil pump (3), motor (4), integrated shell (5), dual pressure controller (6) and low pressure controller (7), the oil pump (3) it is defeated
Enter axis to be connected with the output shaft of motor (4), pump oil inlet (31) is provided on oil pump (3) and pumps out hydraulic fluid port (32), the collection
It include the shell chamber (52) of shell (51) and its internal setting, one end of the shell (51) and the body of motor (4) at shell (5)
(41) it is connected, signaling interface (53), high voltage power supply interface (54), low-tension supply interface is provided on the other end of shell (51)
(55), low pressure controller (7) are provided in the shell chamber (52)；
The motor (4) is successively through high pressure connection wire (56), high voltage power supply interface (54), high pressure outer connecting line (541), high pressure
Controller (6) is electrically connected with high voltage power supply (8) afterwards, and motor (4) is successively through low pressure connection wire (57), low pressure controller
(7), the outer connecting line (551) of low-tension supply interface (55), low pressure is electrically connected with low-tension supply (9) afterwards, and motor (4) successively passes through
The outer connecting line (531) of signal connection wire (58), low pressure controller (7), signaling interface (53), signal afterwards with vehicle CAN bus
(10) signal connection is carried out, vehicle CAN bus (10) carries out signal connection through high-voltage signal line (61) and dual pressure controller (6),
The high pressure connection wire (56), low pressure connection wire (57), signal connection wire (58) are all set to the interior of integrated shell (5)
Portion, and integrated shell (5), motor (4), oil pump (3) are connected as one to constitute integrated form double source electric powered steering oil pump assy
(X)。
5. a kind of application method of EHPS system according to claim 4, it is characterised in that: the input of the oil pump (3)
Axis is connected by flexible clutch (33) with the output shaft of motor (4), and the output of the input shaft of oil pump (3) and motor (4)
Axis is coaxially arranged.
6. a kind of application method of EHPS system according to claim 4, it is characterised in that: the motor (4) includes electricity
Machine stator (42), high-voltage motor rotor (43) and low voltage motor rotor (44), and high-voltage motor rotor (43), low voltage motor rotor
(44) motor stator (42) is shared；
The high-voltage motor rotor (43) is successively through high pressure connection wire (56), high voltage power supply interface (54), the outer connecting line of high pressure
(541), dual pressure controller (6) is electrically connected with high voltage power supply (8) afterwards, and the low voltage motor rotor (44) is successively through in low pressure
The outer connecting line (551) of connecting line (57), low pressure controller (7), low-tension supply interface (55), low pressure afterwards with low-tension supply (9) into
Row electrical connection.
7. a kind of application method of EHPS system according to claim 6, it is characterised in that: the high-voltage motor rotor
(43), low voltage motor rotor (44) constitutes a concentric loop (45) altogether, and the center of circle position in the concentric loop (45) is provided with
Motor stator (42), high-voltage motor rotor (43), low voltage motor rotor (44) are uniformly arranged along concentric loop (45).
8. a kind of application method of EHPS system according to claim 4, it is characterised in that: the dual pressure controller (6)
Electric powered steering oil pump assy control module (63), electric compressor including All-in-One shell (62) and its internal setting control mould
Block (64), vehicle motor control module (65), vehicle DCDC control module (66)；
The electric powered steering oil pump assy control module (63) carries out signal through high-voltage signal line (61) and vehicle CAN bus (10)
Connection, the high voltage power supply (8) successively after electric powered steering oil pump assy control module (63), the outer connecting line (541) of high pressure with
High voltage power supply interface (54) is electrically connected.
9. a kind of application method of EHPS system according to claim 8, it is characterised in that: the electric compressor control
Module (64), vehicle motor control module (65), vehicle DCDC control module (66) all through high-voltage signal line (61) with it is whole
Vehicle CAN bus (10) carries out signal connection；
The electric compressor control module (64), vehicle motor control module (65), vehicle DCDC control module (66)
One end be all electrically connected with high voltage power supply (8), the other end is all through connecting line outside high pressure (541) and high voltage power supply interface (54)
It is electrically connected.
10. a kind of application method of EHPS system according to claim 4, it is characterised in that: the pump oil inlet (31)
It is connected through oil inlet pipe (11) and steering reservoir (1), pumps out hydraulic fluid port (32) and be connected through pressure duct (21) and turning machine (2)
Logical, turning machine (2) is connected through oil return line (12) and steering reservoir (1).
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| CN201910676946.2A CN110509985A (en) | 2019-07-25 | 2019-07-25 | A kind of application method of EHPS system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114655017A (en) * | 2022-03-30 | 2022-06-24 | 北京亿华通科技股份有限公司 | Integrated control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985399A (en) * | 2017-12-28 | 2018-05-04 | 东风商用车有限公司 | High-low pressure double source controls electric hydraulic power-assisted steering system and application method |
| CN207875753U (en) * | 2017-12-28 | 2018-09-18 | 东风商用车有限公司 | High-low pressure double source controls electric hydraulic power-assisted steering system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107985399A (en) * | 2017-12-28 | 2018-05-04 | 东风商用车有限公司 | High-low pressure double source controls electric hydraulic power-assisted steering system and application method |
| CN207875753U (en) * | 2017-12-28 | 2018-09-18 | 东风商用车有限公司 | High-low pressure double source controls electric hydraulic power-assisted steering system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114655017A (en) * | 2022-03-30 | 2022-06-24 | 北京亿华通科技股份有限公司 | Integrated control system |
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Application publication date: 20191129 |