CN209719715U - EPS motor control system and electric car for electric car - Google Patents
EPS motor control system and electric car for electric car Download PDFInfo
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- CN209719715U CN209719715U CN201920499195.7U CN201920499195U CN209719715U CN 209719715 U CN209719715 U CN 209719715U CN 201920499195 U CN201920499195 U CN 201920499195U CN 209719715 U CN209719715 U CN 209719715U
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Abstract
The utility model discloses a kind of EPS motor control systems and electric car for electric car, including main control unit module, A-battery module and low voltage DC AC module, main control unit module is electrically connected with A-battery module and low voltage DC AC module respectively, low voltage DC AC module is electrically connected with the low pressure winding of A-battery module and EPS motor respectively, it further include boost DC/DC module, high-voltage battery module, high pressure preliminary filling module and high pressure DCAC module, boost DC/DC module and A-battery module, main control unit module and low voltage DC AC module are electrically connected, high pressure preliminary filling module respectively with high-voltage battery module, main control unit module and the electrical connection of high pressure DCAC module, high pressure DCAC module is electrically connected with the high-voltage winding of main control unit module and EPS motor respectively.The technical solution of the utility model can greatly extend the application range of EPS motor control system and improve safety in utilization.
Description
Technical field
The utility model relates to motor in electric automobile control technology fields, and in particular to a kind of EPS for electric car
Electric machine control system and a kind of electric car.
Background technique
China Automobile Industry electric power steering technology has been mainstream configuration scheme, the steering system of electric car at present
Be divided into two classes: electric passenger vehicle uses electric boosting steering system (EPS) scheme due to the light mainstream in chassis；Electric commercial vehicle (packet
Include the special vehicles such as bus, logistic car, environmental sanitation) because vehicle body is heavier, it needs to turn using more powerful hydraulic circuit power-assisted
To system.Further improving and gradually promoting due to industry laws, future automobile components need to meet " road vehicle function peace
Laws and regulations requirement entirely ".
Existing EPS scheme is since the driving capability of low pressure storage battery is limited, and the scope of application is narrow, and to be only applicable to part electronic
Passenger car uses, and SUV, logistics, the bus vehicle of some chassis weightings can only be forced to use more many and diverse hydraulic oil pipe system
Power steering is provided, but hydraulic circuit power-assisted steering scheme has reliability low and maintenance is frequent etc. disadvantage.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art, proposes a kind of for electronic
The EPS motor control system of automobile and a kind of electric car.
To achieve the goals above, the utility model in a first aspect, providing a kind of EPS motor for electric car
Control system, the EPS motor control system include main control unit module, A-battery module and low voltage DC AC module, described
Main control unit module is electrically connected with the A-battery module and the low voltage DC AC module respectively, the low voltage DC AC module point
It is not electrically connected with the low pressure winding of the A-battery module and EPS motor, the EPS motor control system further includes boosting
DCDC module, high-voltage battery module, high pressure preliminary filling module and high pressure DCAC module；Wherein,
The boost DC/DC module and the A-battery module, the main control unit module and the low voltage DC AC module
It is electrically connected；
The high pressure preliminary filling module respectively with the high-voltage battery module, the main control unit module and the high pressure DCAC
Module electrical connection, high-voltage winding of the high pressure DCAC module respectively with the main control unit module and the EPS motor are electrically connected
It connects；Also,
The main control unit module, for the default power-assisted signal that basis receives, selectively by the low voltage DC AC
Module and the high pressure DCAC module electrically conduct with the EPS motor.
Optionally, the high pressure DCAC module includes the first transistor, second transistor, third transistor, the 4th crystal
Pipe, the 5th transistor, the 6th transistor, first diode, the second diode, third diode, the 4th diode, the five or two pole
Pipe and the 6th diode；Wherein,
The first transistor, second transistor, third transistor, the 4th transistor, the 5th transistor and the 6th crystal
The control electrode of pipe is electrically connected with the main control unit module；
First pole of the first transistor and the cathode of the high pressure preliminary filling module and the first diode are electrically connected
It connects, the first phase high-voltage winding of the second pole of the first transistor and the anode of the first diode and the EPS motor
Electrical connection；
The cathode of first pole of the second transistor and the second pole of the first transistor and second diode
It is electrically connected, the second pole of the second transistor and the anode of the high pressure preliminary filling module and second diode are electrically connected
It connects；
First pole of the third transistor and the cathode of the high pressure preliminary filling module and the third diode are electrically connected
It connects, the second pole of the third transistor and the anode of the third diode and the second phase high-voltage winding of the EPS motor
Electrical connection；
The cathode of first pole of the 4th transistor and the second pole of the third transistor and the 4th diode
It is electrically connected, the second pole of the 4th transistor and the anode of the high pressure preliminary filling module and the 4th diode are electrically connected
It connects；
First pole of the 5th transistor and the cathode of the high pressure preliminary filling module and the 5th diode are electrically connected
It connects, the second pole of the 5th transistor and the anode of the 5th diode and the third phase high-voltage winding of the EPS motor
Electrical connection；
First pole of the 6th transistor and the second pole of the 5th transistor and the cathode of the 6th diode
It is electrically connected, the second pole of the 6th transistor and the anode of the high pressure preliminary filling module and the 6th diode are electrically connected
It connects；
Each transistor is N-type transistor or P-type transistor.
Optionally, the low voltage DC AC module includes the 7th transistor, the 8th transistor, the 9th transistor, the tenth crystal
Pipe, the 11st transistor, the tenth two-transistor, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the tenth
One diode and the 12nd diode；Wherein,
7th transistor, the 8th transistor, the 9th transistor, the tenth transistor, the 11st transistor and the 12nd
The control electrode of transistor is electrically connected with the main control unit module；
First pole of the 7th transistor and the cathode of the boost DC/DC module and the 7th diode are electrically connected
It connects, the second pole and the anode of the 7th diode and the first phase low pressure winding of the EPS motor of the 7th transistor
Electrical connection；
First pole of the 8th transistor and the second pole of the 7th transistor and the cathode of the 8th diode
It is electrically connected, the second pole of the 8th transistor and the anode of the boost DC/DC module and the 8th diode are electrically connected
It connects；
First pole of the 9th transistor and the cathode of the boost DC/DC module and the 9th diode are electrically connected
It connects, the second pole and the anode of the 9th diode and the second phase low pressure winding of the EPS motor of the 9th transistor
Electrical connection；
First pole of the tenth transistor and the second pole of the 9th transistor and the cathode of the tenth diode
It is electrically connected, the second pole of the tenth transistor and the anode of the boost DC/DC module and the tenth diode are electrically connected
It connects；
First pole of the 11st transistor and the cathode of the boost DC/DC module and the 11st diode are equal
Electrical connection, the second pole of the 11st transistor and the anode of the 11st diode and the third phase of the EPS motor
Low pressure winding electrical connection；
First pole of the tenth two-transistor and the second pole of the 11st transistor and the 12nd diode
Cathode be electrically connected, the second pole of the tenth two-transistor and the boost DC/DC module and the 12nd diode
Anode is electrically connected；
Each transistor is N-type transistor or P-type transistor.
Optionally, the boost DC/DC module includes the 13rd transistor, the 14th transistor, the 13rd diode, the
14 diodes, the 15th diode, inductance, first capacitor and the second capacitor；Wherein,
The control electrode of 13rd transistor and the 14th transistor is electrically connected with the main control unit module；
First pole of the 13rd transistor and the cathode of the 13rd diode, the second end of the inductance and institute
The anode for stating the 14th diode is electrically connected, the second pole of the 13rd transistor and the A-battery module, described
The second end of low voltage DC AC module and the first capacitor is electrically connected；
First pole cathode of the first pole of the 14th transistor and the 15th diode, second capacitor
First end and the first end of the inductance are electrically connected, the second pole and the 15th diode of the 14th transistor
Second pole anode and the A-battery module are electrically connected；
The first end of the first capacitor is electrically connected with the cathode of the 14th diode；
The second end of second capacitor is electrically connected with the A-battery module；
13rd transistor is N-type transistor, and the 14th transistor is P-type transistor.
Optionally, the high pressure preliminary filling module includes third capacitor, resistance, switch member and the 16th diode；Wherein,
The anode of 16th diode is electrically connected with the high-voltage battery module, the cathode of the 16th diode
It is electrically connected with the first end of the switch and the first end of the resistance；
The first end of the third capacitor and second end, the second end of the resistance and the high pressure DCAC of the switch
Module is electrically connected；
The second end of the third capacitor is electrically connected with the high-voltage battery module and the high pressure DCAC module.
Optionally, the EPS motor control system further includes high-voltage relay group, and the high-voltage relay group is serially connected in institute
It states between the three-phase high-voltage winding of EPS motor and the high pressure DCAC module.
Optionally, the EPS motor control system further includes low-voltage relay group, and the low-voltage relay group is serially connected in institute
It states between the three-phase low-voltage winding of EPS motor and the low voltage DC AC module.
Optionally, the EPS motor control system further includes sensor module, the sensor module and EPS electricity
Machine and the main control unit module are electrically connected, and the sensor module is used to obtain the reality output parameter of the EPS motor
And the main control unit module is sent it to, the main control unit module determines the EPS according to the reality output parameter
The reality output power-assisted of motor simultaneously judges whether the reality output power-assisted meets predetermined system power-assisted.
Optionally, the sensor module includes torque sensor and rotor-position sensor.
The second aspect of the utility model, provides a kind of electric car, and the electric car includes EPS motor and EPS
Electric machine control system, the EPS motor control system is using the EPS motor control system recorded above.
The EPS motor control system and electric car of the utility model, in addition to being provided with low pressure branch (A-battery module
With low voltage DC AC module) other than, it is additionally provided with high pressure branch road (high-voltage battery module, high pressure preliminary filling module and high pressure DCAC mould
Block), therefore, when giving power-assisted signal to the EPS motor control system, it can be determined according to the power-assisted signal by low pressure branch
It is connected, or high pressure branch road is connected with EPS motor namely main control unit module controls low voltage DC AC mould respectively with EPS motor
DC inverter is controllable AC electric drive EPS motor by block and high pressure DCAC module, so as to drive EPS motor output full
The driving force required enough meets the steering demand of electric car.The scope of application is relatively broad, electronic riding in addition to can be adapted for
Outside vehicle, SUV, logistics, the bus vehicle etc. that some chassis are laid particular stress on can also be applicable in.
In addition, main control unit module can issue instruction and close high pressure DCAC module, low when high pressure branch road breaks down
Pressure branch can continue to provide part power steering, maintain power steering function, do not lose power-assisted steering function.Similarly, when
When low pressure branch breaks down, main control unit module issues instruction and closes low voltage DC AC module, and high pressure branch road continues to provide part
Power steering does not lose power-assisted steering function.
Detailed description of the invention
Attached drawing is to be used to provide a further understanding of the present invention, and constitute part of specification, and following
Specific embodiment be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of EPS motor control system in the utility model first embodiment；
Fig. 2 is the structural schematic diagram of EPS motor control system in the utility model second embodiment.
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
As shown in Figure 1, a kind of EPS motor control system for electric car, which includes master control
Unit module 101, A-battery module 103 and low voltage DC AC module 107, main control unit module 101 respectively with A-battery mould
Block 103 and low voltage DC AC module 107 are electrically connected, low voltage DC AC module 107 respectively with A-battery module 103 and EPS motor 112
Low pressure winding electrical connection.Wherein, as shown in Figure 1, EPS motor control system further includes boost DC/DC module 105, high-tension battery
Module 102, high pressure preliminary filling module 104 and high pressure DCAC module 106.Wherein, boost DC/DC module 105 and A-battery module
103, main control unit module 101 and low voltage DC AC module 107 are electrically connected.High pressure preliminary filling module 104 respectively with high-tension battery mould
Block 102, main control unit module 101 and high pressure DCAC module 106 are electrically connected, high pressure DCAC module 106 respectively with main control unit mould
The electrical connection of the high-voltage winding of block 101 and EPS motor 112.Main control unit module 101, for according to the default power-assisted letter received
Number, selectively low voltage DC AC module 107 and high pressure DCAC module 106 are electrically conducted with EPS motor 112.
The EPS motor control system of the present embodiment structure, in addition to being provided with low pressure branch (A-battery module 103 and low
Press DCAC module 107) other than, it is additionally provided with high pressure branch road (high-voltage battery module 102, high pressure preliminary filling module 104 and high pressure DCAC
Module 106), it therefore, can will be low according to the power-assisted signal determination when giving power-assisted signal to the EPS motor control system
Pressure branch be connected with EPS motor, or by high pressure branch road be connected with EPS motor namely main control unit module 101 control respectively it is low
Pressing DCAC module 107 and high pressure DCAC module 106 by DC inverter is controllable AC electric drive EPS motor 112, so as to
Driving EPS motor exports the driving force met the requirements, meets the steering demand of electric car.Obviously, the EPS motor of the present embodiment
Control system, the scope of application is relatively broad, other than it can be adapted for electric passenger vehicle, can also be applicable in what some chassis were laid particular stress on
SUV, logistics, bus vehicle etc..
In addition, main control unit module 101 can issue instruction and close high pressure DCAC module when high pressure branch road breaks down
106, low pressure branch can continue to provide part power steering, maintain power steering function, do not lose power-assisted steering function.Equally
Ground, when low pressure branch break down when, main control unit module 101 issue instruction close low voltage DC AC module 107, high pressure branch road after
It is continuous that part power steering is provided, do not lose power-assisted steering function.
In addition, the EPS motor control system of the present embodiment structure, while increasing high pressure branch road, in low pressure branch
Boost DC/DC module 105 is increased, so as to improve the voltage that A-battery module 103 is exported, for example, A-battery mould
Block 103 powers on, and main control unit module 101 controls boost DC/DC module 105 and carries out boosting to DC60V.In this way, low pressure can be reduced
The electric current that DCAC module 107 is output to EPS motor 112 can reduce very much, and motor AC connection wiring harness or copper bar is made all may be used
To reduce sectional area.
As shown in Fig. 2, high pressure DCAC module 106 include the first transistor Q1, second transistor Q2, third transistor Q3,
4th transistor Q4, the 5th transistor Q5, the 6th transistor Q6, first diode D1, the second diode D2, third diode
D3, the 4th diode D4, the 5th diode D5 and the 6th diode D6.
The first transistor Q1, second transistor Q2, third transistor Q3, the 4th transistor Q4, the 5th transistor Q5, the 6th
The control electrode of transistor Q6 is electrically connected with main control unit module 101.
The first pole of the first transistor Q1 is electrically connected with the cathode of high pressure preliminary filling module 104 and first diode D1, the
The second pole of one transistor Q1 is electrically connected with the first phase high-voltage winding U of the anode of first diode D2 and EPS motor 112.
The first pole of second transistor Q2 and the cathode of the second pole of the first transistor Q1 and the second diode D2 are electrically connected
It connects, the second pole of second transistor Q2 is electrically connected with the anode of high pressure preliminary filling module 104 and the second diode D2.
The first pole of third transistor Q3 is electrically connected with the cathode of high pressure preliminary filling module 104 and third diode D3, the
The second pole of three transistor Q3 is electrically connected with the second phase high-voltage winding V of the anode of third diode D3 and EPS motor 112.
The first pole of 4th transistor Q4 and the cathode of the second pole of third transistor Q3 and the 4th diode D4 are electrically connected
It connects, the second pole of the 4th transistor Q4 is electrically connected with the anode of high pressure preliminary filling module 104 and the 4th diode D4.
The first pole of 5th transistor Q5 is electrically connected with the cathode of high pressure preliminary filling module 104 and the 5th diode D5, the
The second pole of five transistor Q5 is electrically connected with the third phase high-voltage winding W of the anode of the 5th diode D5 and EPS motor 112.
The first pole of 6th transistor Q6 is electrically connected with the second pole of the 5th transistor Q5 and the cathode of the 6th diode D6
It connects, the second pole of the 6th transistor Q6 is electrically connected with the anode of high pressure preliminary filling module 104 and the 6th diode D6.
It should be noted that the grid of the control extremely transistor of above-mentioned transistor, the first pole of transistor can be source
Pole, second extremely drains, it is of course also possible to be the first of transistor extremely to drain, and the second extremely source electrode, above-mentioned transistor can
It to be P-type transistor or be N-type transistor, or can also partially be N-type transistor, be partially P-type transistor, it is so-called
N-type transistor refer to that, when the control electrode of transistor receives high level signal, the first pole and the second pole of the transistor are led
It is logical, and P-type transistor is then just the opposite, when receiving low level signal, the first pole is connected control electrode with the second pole.
As shown in Fig. 2, low voltage DC AC module 107 include the 7th transistor Q7, the 8th transistor Q8, the 9th transistor Q9,
Tenth transistor Q10, the 11st transistor Q11, the tenth two-transistor Q12, the 7th diode D7, the 8th diode D8, the 9th
Diode D9, the tenth diode D10, the 11st diode D11 and the 12nd diode D12.
Specifically, as shown in Fig. 2, the 7th transistor Q7, the 8th transistor Q8, the 9th transistor Q9, the tenth transistor
Q10, the 11st transistor Q11, the tenth two-transistor Q12 control electrode be electrically connected with main control unit module 101.
The first pole of 7th transistor Q7 is electrically connected with the cathode of boost DC/DC module 105 and the 7th diode D7, the
The second pole of seven transistor Q7 is electrically connected with the first phase low pressure winding A of the anode of the 7th diode D7 and EPS motor 112.
The first pole of 8th transistor Q8 is electrically connected with the second pole of the 7th transistor A7 and the cathode of the 8th diode D8
It connects, the second pole of the 8th transistor Q8 is electrically connected with the anode of boost DC/DC module 105 and the 8th diode D8.
The first pole of 9th transistor Q9 is electrically connected with the cathode of boost DC/DC module 105 and the 9th diode D9, the
The second pole of nine transistor Q9 is electrically connected with the second phase low pressure winding B of the anode of the 9th diode D9 and EPS motor 112.
The first pole of tenth transistor Q10 and the second pole of the 9th transistor Q9 and the cathode of the tenth diode D12 are electric
Connection, the second pole of the tenth transistor Q10 is electrically connected with the anode of boost DC/DC module 105 and the tenth diode D10.
The first pole of 11st transistor Q11 and the cathode of boost DC/DC module 105 and the 11st diode D11 are electrically connected
It connects, the second pole of the 11st transistor Q11 and the anode of the 11st diode D11 and the third phase low pressure winding of EPS motor 112
C electrical connection.
The first pole of tenth two-transistor Q12 and the second pole of the 11st transistor Q11 and the yin of the 12nd diode D12
It is extremely electrically connected, the second pole of the tenth two-transistor Q12 and the anode of boost DC/DC module 105 and the 12nd diode D12 are equal
Electrical connection.
It should be noted that each transistor can be N-type transistor or P-type crystal in low voltage DC AC module 107
Pipe, pole each for transistor are explained to refer to and be recorded above.As shown in Fig. 2, boost DC/DC module 105 includes the 13rd crystal
Pipe Q13, the 14th transistor Q14, the 13rd diode D13, the 14th diode D14, the 15th diode D15, inductance L1,
First capacitor C1 and the second capacitor C2.
Specifically, as shown in Fig. 2, the control electrode of the 13rd transistor Q13 and the 14th transistor Q14 and main control unit
Module 101 is electrically connected.
The first pole of 13rd transistor Q13 and the cathode of the 13rd diode D13, the second end and the 14th of inductance L1
The anode of diode D14 is electrically connected, the second pole of the 13rd transistor Q13 and A-battery module 103, low voltage DC AC module
107 is (specifically extremely electric with second of the 8th transistor Q8, the tenth transistor Q10 and the tenth two-transistor Q12 in the module
Connection) and the second end of first capacitor C1 be electrically connected.
The first pole of 14th transistor Q14 and the cathode of the 15th diode D15, the first end and electricity of the second capacitor C2
The first end of sense L1 is electrically connected, the second pole of the 14th transistor Q14 and the anode and A-battery of the 15th diode D15
Module 103 is electrically connected.
The first end of first capacitor C1 is electrically connected with the cathode of the 14th diode D14, the second end of the second capacitor C2 with
A-battery module 103 is electrically connected.
It should be noted that the 14th transistor Q14 is p-type MOSFET pipe in boost DC/DC module 105, effect is
The positive and negative reversal connection of A-battery module 103 is prevented, 107 device of low pressure branch low voltage DC AC module is avoided to damage, the 13rd is brilliant
Body pipe Q13 uses N-type transistor.Second capacitor C2 and the 13rd transistor Q13, the 13rd diode D13, the 14th diode
D14 and first capacitor C1 forms minimum BOOST power-supply system, and the low-voltage 12V or 24V of A-battery module 103 are boosted to
60V (this voltage is adjustable).
As shown in Fig. 2, high pressure preliminary filling module 104 includes third capacitor C3, resistance R, switch member K and the 16th diode
D16.Wherein, the anode of the 16th diode D16 is electrically connected with high-voltage battery module 102, the cathode of the 16th diode D16 with
The first end of switch K and the first end of resistance R are electrically connected.The first end of third capacitor C3 and second end, the resistance R of switch K
Second end and high pressure DCAC module 106 be electrically connected.The second end and high-voltage battery module 102 and high pressure of third capacitor C3
DCAC module 106 is electrically connected.
Wherein the 16th diode D16 has the function of anti-reverse, and resistance R is high pressure preliminary filling resistance, and effect is on initial
Third capacitor C3 both end voltage is 0V when electric, and high-tension battery voltage > 300V is directly connected into system, the capacitive reactance of third capacitor C3
Very little can have at this time instantaneous large-current appearance near short circuit, and may burn system insurance has the service life of third capacitor C3
It seriously affects.
As depicted in figs. 1 and 2, EPS motor control system further includes high-voltage relay group 108 and low-voltage relay group 109,
High-voltage relay group 108 is serially connected between the three-phase high-voltage winding of EPS motor and high pressure DCAC module 106.Low-voltage relay group
109 are serially connected between the three-phase low-voltage winding of EPS motor 112 and low voltage DC AC module 107.
As depicted in figs. 1 and 2, EPS motor control system further includes sensor module 110, sensor module 110 and EPS
Motor 112 and main control unit module 101 are electrically connected, and sensor module 110 is used to obtain the reality output ginseng of EPS motor 112
Number (for example, torque and rotor-position etc.) simultaneously sends it to main control unit module 101, and main control unit module 101 is according to reality
Output parameter determines the reality output power-assisted of EPS motor 112 and judges whether the reality output power-assisted meets predetermined system power-assisted.
Sensor module 110 may include torque sensor and rotor-position sensor.
The second aspect of the utility model provides a kind of electric car (not showing that in figure), and electric car includes EPS
Motor and EPS motor control system, EPS motor control system is using the EPS motor control system recorded above, the tool of the system
Body structure can be recorded with reference to related above, and therefore not to repeat here.
The electric car of the present embodiment structure has the EPS motor control system recorded above, in addition to being provided with low pressure branch
Other than road (A-battery module 103 and low voltage DC AC module 107), it is additionally provided with high pressure branch road (high-voltage battery module 102, height
Press preliminary filling module 104 and high pressure DCAC module 106), it therefore, can be with when giving power-assisted signal to the EPS motor control system
It is determined according to the power-assisted signal and low pressure branch is connected with EPS motor, or high pressure branch road is connected with EPS motor, Ye Jizhu
It is controllable AC voltage that control unit module 101 controls low voltage DC AC module 107 and high pressure DCAC module 106 for DC inverter respectively
EPS motor 112 is driven, the driving force met the requirements so as to drive EPS motor to export meets the steering need of electric car
It asks.Obviously, the electric car of the present embodiment, other than it can be electric passenger vehicle, can also for some chassis lay particular stress on SUV,
Logistics, bus vehicle etc..
In addition, main control unit module 101 can issue instruction and close high pressure DCAC module when high pressure branch road breaks down
106, low pressure branch can continue to provide part power steering, maintain power steering function, do not lose power-assisted steering function.Equally
Ground, when low pressure branch break down when, main control unit module 101 issue instruction close low voltage DC AC module 107, high pressure branch road after
It is continuous that part power steering is provided, do not lose power-assisted steering function.
It is understood that embodiment of above is merely to illustrate that the principles of the present invention and uses exemplary
Embodiment, however the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case where the spirit and essence of utility model, various changes and modifications can be made therein, these variations and modifications are also considered as this reality
With novel protection scope.
Claims (10)
1. a kind of EPS motor control system for electric car, the EPS motor control system include main control unit module,
A-battery module and low voltage DC AC module, the main control unit module respectively with the A-battery module and the low pressure
The electrical connection of DCAC module, low pressure winding of the low voltage DC AC module respectively with the A-battery module and EPS motor are electrically connected
It connects, which is characterized in that the EPS motor control system further includes boost DC/DC module, high-voltage battery module, high pressure preliminary filling module
With high pressure DCAC module；Wherein,
The boost DC/DC module and the A-battery module, the main control unit module and the low voltage DC AC module are electric
Connection；
The high pressure preliminary filling module respectively with the high-voltage battery module, the main control unit module and the high pressure DCAC module
Electrical connection, the high pressure DCAC module are electrically connected with the high-voltage winding of the main control unit module and the EPS motor respectively；And
And
The main control unit module, for the default power-assisted signal that basis receives, selectively by the low voltage DC AC module
It electrically conducts with the high pressure DCAC module with the EPS motor.
2. EPS motor control system according to claim 1, which is characterized in that the high pressure DCAC module includes first
Transistor, second transistor, third transistor, the 4th transistor, the 5th transistor, the 6th transistor, first diode, second
Diode, third diode, the 4th diode, the 5th diode and the 6th diode；Wherein,
The first transistor, second transistor, third transistor, the 4th transistor, the 5th transistor and the 6th transistor
Control electrode is electrically connected with the main control unit module；
First pole of the first transistor is electrically connected with the cathode of the high pressure preliminary filling module and the first diode, institute
It states the second pole of the first transistor and the first phase high-voltage winding of the anode of the first diode and the EPS motor is electrically connected
It connects；
First pole of the second transistor and the cathode of the second pole of the first transistor and second diode are electric
Connection, the second pole of the second transistor is electrically connected with the anode of the high pressure preliminary filling module and second diode；
First pole of the third transistor is electrically connected with the cathode of the high pressure preliminary filling module and the third diode, institute
It states the second pole of third transistor and the second phase high-voltage winding of the anode of the third diode and the EPS motor is electrically connected
It connects；
First pole of the 4th transistor and the cathode of the second pole of the third transistor and the 4th diode are electric
Connection, the second pole of the 4th transistor is electrically connected with the anode of the high pressure preliminary filling module and the 4th diode；
First pole of the 5th transistor is electrically connected with the cathode of the high pressure preliminary filling module and the 5th diode, institute
The second pole and the anode of the 5th diode and the third phase high-voltage winding of the EPS motor for stating the 5th transistor are electrically connected
It connects；
First pole of the 6th transistor and the second pole of the 5th transistor and the cathode of the 6th diode are electric
Connection, the second pole of the 6th transistor is electrically connected with the anode of the high pressure preliminary filling module and the 6th diode；
Each transistor is N-type transistor or P-type transistor.
3. EPS motor control system according to claim 1, which is characterized in that the low voltage DC AC module includes the 7th
Transistor, the 8th transistor, the 9th transistor, the tenth transistor, the 11st transistor, the tenth two-transistor, the 7th diode,
8th diode, the 9th diode, the tenth diode, the 11st diode and the 12nd diode；Wherein,
7th transistor, the 8th transistor, the 9th transistor, the tenth transistor, the 11st transistor and the 12nd crystal
The control electrode of pipe is electrically connected with the main control unit module；
First pole of the 7th transistor is electrically connected with the cathode of the boost DC/DC module and the 7th diode, institute
The second pole and the anode of the 7th diode and the first phase low pressure winding of the EPS motor for stating the 7th transistor are electrically connected
It connects；
First pole of the 8th transistor and the second pole of the 7th transistor and the cathode of the 8th diode are electric
Connection, the second pole of the 8th transistor is electrically connected with the anode of the boost DC/DC module and the 8th diode；
First pole of the 9th transistor is electrically connected with the cathode of the boost DC/DC module and the 9th diode, institute
The second pole and the anode of the 9th diode and the second phase low pressure winding of the EPS motor for stating the 9th transistor are electrically connected
It connects；
First pole of the tenth transistor and the second pole of the 9th transistor and the cathode of the tenth diode are electric
Connection, the second pole of the tenth transistor is electrically connected with the anode of the boost DC/DC module and the tenth diode；
First pole of the 11st transistor and the cathode of the boost DC/DC module and the 11st diode are electrically connected
It connects, the second pole of the 11st transistor and the anode of the 11st diode and the third phase low pressure of the EPS motor
Winding electrical connection；
First pole of the tenth two-transistor and the second pole of the 11st transistor and the yin of the 12nd diode
It is extremely electrically connected, the second pole of the tenth two-transistor and the anode of the boost DC/DC module and the 12nd diode
It is electrically connected；
Each transistor is N-type transistor or P-type transistor.
4. EPS motor control system according to claim 1, which is characterized in that the boost DC/DC module includes the tenth
Three transistors, the 14th transistor, the 13rd diode, the 14th diode, the 15th diode, inductance, first capacitor and
Second capacitor；Wherein,
The control electrode of 13rd transistor and the 14th transistor is electrically connected with the main control unit module；
The cathode of first pole of the 13rd transistor and the 13rd diode, the second end of the inductance and described the
The anode of 14 diodes is electrically connected, the second pole of the 13rd transistor and the A-battery module, the low pressure
The second end of DCAC module and the first capacitor is electrically connected；
First pole of the 14th transistor and the cathode of the 15th diode, the first end of second capacitor and institute
The first end for stating inductance is electrically connected, the second pole of the 14th transistor and the anode of the 15th diode and described
A-battery module is electrically connected；
The first end of the first capacitor is electrically connected with the cathode of the 14th diode；
The second end of second capacitor is electrically connected with the A-battery module；
13rd transistor is N-type transistor, and the 14th transistor is P-type transistor.
5. EPS motor control system according to claim 1, which is characterized in that the high pressure preliminary filling module includes third
Capacitor, resistance, switch member and the 16th diode；Wherein,
The anode of 16th diode is electrically connected with the high-voltage battery module, the cathode of the 16th diode and institute
The first end of the first end and the resistance of stating switch is electrically connected；
The first end of the third capacitor and second end, the second end of the resistance and the high pressure DCAC module of the switch
It is electrically connected；
The second end of the third capacitor is electrically connected with the high-voltage battery module and the high pressure DCAC module.
6. EPS motor control system as claimed in any of claims 1 to 5, which is characterized in that the EPS motor
Control system further includes high-voltage relay group, the high-voltage relay group be serially connected in the EPS motor three-phase high-voltage winding and
Between the high pressure DCAC module.
7. EPS motor control system as claimed in any of claims 1 to 5, which is characterized in that the EPS motor
Control system further includes low-voltage relay group, the low-voltage relay group be serially connected in the EPS motor three-phase low-voltage winding and
Between the low voltage DC AC module.
8. EPS motor control system as claimed in any of claims 1 to 5, which is characterized in that the EPS motor
Control system further includes sensor module, and the sensor module is electrically connected with the EPS motor and the main control unit module
It connects, the sensor module is used to obtain the reality output parameter of the EPS motor and sends it to the main control unit mould
Block, the main control unit module determine the reality output power-assisted of the EPS motor according to the reality output parameter and judge to be somebody's turn to do
Whether reality output power-assisted meets predetermined system power-assisted.
9. EPS motor control system according to claim 8, which is characterized in that the sensor module includes that torque passes
Sensor and rotor-position sensor.
10. a kind of electric car, the electric car includes EPS motor and EPS motor control system, which is characterized in that described
EPS motor control system is using EPS motor control system described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499195.7U CN209719715U (en) | 2019-04-11 | 2019-04-11 | EPS motor control system and electric car for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499195.7U CN209719715U (en) | 2019-04-11 | 2019-04-11 | EPS motor control system and electric car for electric car |
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| Publication Number | Publication Date |
|---|---|
| CN209719715U true CN209719715U (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920499195.7U Expired - Fee Related CN209719715U (en) | 2019-04-11 | 2019-04-11 | EPS motor control system and electric car for electric car |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030556A (en) * | 2019-12-31 | 2020-04-17 | 东风航盛（武汉）汽车控制系统有限公司 | Electric automobile steering motor control system and method |
-
2019
- 2019-04-11 CN CN201920499195.7U patent/CN209719715U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030556A (en) * | 2019-12-31 | 2020-04-17 | 东风航盛（武汉）汽车控制系统有限公司 | Electric automobile steering motor control system and method |
| CN111030556B (en) * | 2019-12-31 | 2022-02-08 | 东风航盛（武汉）汽车控制系统有限公司 | Electric automobile steering motor control system and method |
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Granted publication date: 20191203 Termination date: 20200411 |