CN113758732A - Electric power steering simulator and method for detecting electric power steering system - Google Patents
Electric power steering simulator and method for detecting electric power steering system Download PDFInfo
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- CN113758732A CN113758732A CN202010486661.5A CN202010486661A CN113758732A CN 113758732 A CN113758732 A CN 113758732A CN 202010486661 A CN202010486661 A CN 202010486661A CN 113758732 A CN113758732 A CN 113758732A
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- 238000004088 simulation Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000012360 testing method Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 description 9
- 238000012544 monitoring process Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/06—Steering behaviour; Rolling behaviour
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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Abstract
The invention discloses an electric power steering simulation device and a detection method of an electric power steering system. The electric power steering simulator includes: input shaft, steering torque analogue means, locking means, torque sensor and electronic booster unit, steering torque analogue means includes: the electric power assisting device is electrically connected with the torque sensor, and the electric power assisting device outputs corresponding assisting torque according to the torque detected by the torque sensor. The electric power steering simulation device is simple in structure and operation, low in cost and convenient to carry can be guaranteed, the actual working condition of a vehicle can be accurately simulated by the electric power steering simulation device, and therefore the electromagnetic compatibility detection result of the electric power steering simulation device can be guaranteed to be accurate.
Description
Technical Field
The invention relates to the field of automobiles, in particular to an electric power steering simulation device and a detection method of an electric power steering system.
Background
The electric power steering system has more excellent performance than a mechanical steering system and a hydraulic steering system, and has a series of advantages of good steering following performance, convenient and flexible operation, compact structure, safety, good portability, good durability, long service life, low possibility of damage, energy saving, environmental protection and the like, so that more and more vehicles use the electric power steering system.
However, as for the electric power steering simulator, at present, there is no electric power steering simulator which can not only give consideration to the working conditions required by the simulated real vehicle, but also ensure simple operation and low cost.
Disclosure of Invention
In view of this, the present invention provides an electric power steering simulator, which can not only consider the working conditions required by simulating an actual vehicle, but also ensure simple operation and low cost.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an electric power steering simulation apparatus according to an embodiment of the present invention includes: input shaft, steering torque analogue means, locking means, torque sensor and electronic booster unit, the steering torque analogue means includes: the guide rod and the power device are suitable for applying axial force to the guide rod so that the guide rod can axially move or has an axial movement trend, the guide rod is linked with the input shaft, the locking device is suitable for locking the input shaft, the torque sensor is suitable for detecting the torque of the input shaft, the electric power assisting device is electrically connected with the torque sensor, and the electric power assisting device outputs corresponding assisting torque according to the torque detected by the torque sensor;
the electric power steering simulator is formed such that: when the power device does not apply axial force to the guide rod, the guide rod and the input shaft are still, and the electric power steering simulation device is in a vehicle straight-going simulation state;
when the power device applies axial force to the guide rod, the locking device locks the input shaft, the input shaft has a rotating trend, the torque sensor detects torque at the input shaft and transmits a detection signal to the electric power assisting device, the electric power assisting device outputs corresponding power assisting torque, and at the moment, the electric power steering simulating device is in a vehicle steering simulating state.
According to some embodiments of the invention, the power plant comprises: the guide rod penetrates through the spring, one end, far away from the input shaft, of the guide rod is connected with the spring, and when the spring has rebound force, the spring applies axial force to the guide rod.
Further, the power plant further comprises: first supporting seat and second supporting seat, first supporting seat is located being close to of spring the one end of input shaft, the second supporting seat is located keeping away from of spring the one end of input shaft, just the spring is suitable for ending to be in first supporting seat with between the second supporting seat, the guide arm is suitable for wearing to establish in proper order first supporting seat the spring and the second supporting seat, just the second supporting seat be suitable for first supporting seat removes.
Furthermore, first supporting seat is equipped with first through-hole, the one end of guide arm is suitable for wearing to establish first through-hole, the other end of guide arm with second supporting seat movably connected, work as the second supporting seat is followed when the guide arm removes, the second supporting seat with the distance between the first supporting seat changes.
Furthermore, the guide rod is in threaded connection with the second supporting seat, the guide rod is provided with external threads, and internal threads are arranged in the second supporting seat.
According to some embodiments of the invention, the electric power steering simulator further comprises: the pull rod is connected with the guide rod, the pull rod is parallel to the axis of the guide rod, a rack portion is arranged on the pull rod, and the input shaft and the rack portion are in transmission fit through a gear.
Furthermore, the pull rod is in threaded connection and matching with the guide rod, an internal thread is arranged on one of the pull rod and the guide rod, and an external thread is arranged on the other one of the pull rod and the guide rod.
According to some embodiments of the invention, the electric power steering simulator further comprises: a housing, the input shaft being disposed in the housing, the locking device including: the fixing block is connected with the baffle, and the fixing block is suitable for locking the input shaft.
In particular, the electric booster is formed as an electric motor.
Compared with the prior art, the electric power steering simulation device has the following advantages:
the electric power steering simulation device has the advantages of simple structure and operation, can ensure that the cost is low and the carrying is convenient, and can ensure that the electric power steering simulation device can accurately simulate the actual working condition of a vehicle, thereby ensuring that the detection result of the electromagnetic compatibility of the electric power steering device is accurate.
Another object of the present invention is to provide a method for detecting electromagnetic compatibility of an electric power steering system, using the electric power steering simulator, comprising the steps of:
s1: the electric power assisting device is electrically connected with a power supply, an IG (insulated gate array) switch is arranged between the electric power assisting device and the power supply, a CANoe device and a CANape device are arranged at a computer end, and the CANoe device and the CANape device are respectively electrically connected with the electric power assisting device;
s2: the IG switch is used for electrifying the electric power assisting device, when the power device applies axial force to the guide rod, the locking device is used for locking the input shaft, the input shaft has a rotating trend, the torque sensor is used for detecting the torque at the input shaft and transmitting a detection signal to the electric power assisting device, the electric power assisting device outputs corresponding power assisting torque, and the computer is used for monitoring the current and the torque output by the electric power assisting device through the CANape equipment;
s3: adjusting the axial force applied to the guide rod by the power device until the CANape equipment monitors that the current output by the electric power assisting device is a specific stable value, recording the torque, and testing the electromagnetic compatibility of the electric power assisting device by using an electromagnetic testing device;
s4: and removing the axial force applied to the guide rod by the power device, monitoring the output current of the electric power assisting device to be 0A by the computer through the CANape equipment, recording the torque at the moment, and testing the electromagnetic compatibility of the electric power assisting device by the electromagnetic testing device.
Compared with the prior art, the method for detecting the electromagnetic compatibility of the electric power steering system has the following advantages:
the method for detecting the electromagnetic compatibility of the electric power steering system can simulate the straight-line running state or the standby state of a vehicle and the steering state of the vehicle, and enables the electric power assisting device to input corresponding power assisting torque so as to simulate the working state of the electric power assisting device, further test the electromagnetic compatibility of the electric power assisting device, and is simple and reliable in operation process.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an electric power steering simulator in accordance with an embodiment of the present invention;
fig. 2 is a schematic diagram of the connection of the electric power steering simulator with a computer, a CANoe device, a canope device and a power supply.
Description of reference numerals:
the electric power steering simulator comprises an electric power steering simulator 10, an input shaft 1, a steering torque simulator 2, a guide rod 21, a spring 221, a first support seat 222, a second support seat 223, an adjusting screw plug 224, a locking device 3, a fixed block 31, a baffle plate 32, a torque sensor 4, an electric power booster 5, a pull rod 6 and a shell 7.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 2 in conjunction with examples.
Referring to fig. 1, an electric power steering simulator 10 according to an embodiment of the present invention includes: the steering system comprises an input shaft 1, a steering torque simulation device 2, a locking device 3, a torque sensor 4 and an electric power assisting device 5.
Specifically, as shown in fig. 1, the steering torque simulation device 2 includes: the guide rod 21 and the power device are suitable for applying axial force to the guide rod 21 so that the guide rod 21 can axially move or has an axial movement trend, and the guide rod 21 is linked with the input shaft 1.
That is, when the power unit applies an axial force to the guide rod 21, the guide rod 21 can drive the input shaft 1 to rotate, so that a certain torque is applied to the input shaft 1, and a load torque fed back to the input shaft 1 by the vehicle during steering of the vehicle can be simulated.
Further, the locking device 3 is adapted to lock the input shaft 1, the torque sensor 4 is adapted to detect the torque of the input shaft 1, the electric power assisting device 5 is electrically connected with the torque sensor 4, and the electric power assisting device 5 outputs a corresponding assisting torque according to the magnitude of the torque detected by the torque sensor 4.
The electric power steering simulator 10 is formed such that: when the power device does not apply axial force to the guide rod 21, the guide rod 21 and the input shaft 1 are still, and the electric power steering simulation device 10 is in a vehicle straight-going simulation state;
when the power device applies an axial force to the guide rod 21, the locking device 3 locks the input shaft 1, the input shaft 1 tends to rotate, the torque sensor 4 detects the torque at the input shaft 1 and transmits a detection signal to the electric power assisting device 5, the electric power assisting device 5 outputs a corresponding power assisting moment, and at the moment, the electric power steering simulating device 10 is in a vehicle steering simulating state.
In a specific embodiment, the vehicle mainly comprises a pivot start process, a straight-line driving process and a turning process in the driving process, wherein the electric power steering system is equivalent to a standby state during the pivot start process and the straight-line driving process, and the electric power assisting device 5 does not assist, so that the corresponding working condition when the electromagnetic compatibility of the electric power assisting device 5 is detected is that the electric power steering system is in a no-load condition, namely that the electric power assisting device 5 does not output power; during the turning process of the vehicle, the electric power steering system is in a working state, and the electric power assisting device 5 assists power, namely the electric power steering system is in a loaded state
That is to say, the input shaft 1 is a manual input shaft 1 and is used for simulating a steering shaft connected with a steering wheel on a vehicle, the steering torque simulation device 2 is used for simulating a torque load fed back to the steering wheel by the vehicle when the vehicle turns, the locking device 3 can lock the input shaft 1 so as to simulate a rudder protection state when the vehicle turns, the torque sensor 4 can measure the torque of the input shaft 1 when the locking device 3 locks the input shaft 1, and the electric power assisting device 5 can input a corresponding power assisting torque according to the torque measured by the torque sensor 4 so as to simulate a normal working state of the electric power assisting device 5 in the electric power steering system when the vehicle turns, thereby facilitating detection of the electromagnetic compatibility of the electric power assisting device 5.
In an embodiment, when the electromagnetic compatibility of the electric power steering system needs to be detected, the electric power steering simulator 10 can simulate a straight-driving state or a standby state of the vehicle and simulate a steering state of the vehicle, so as to facilitate detection of the electromagnetic compatibility of the electric power steering device 5. Moreover, the electric power steering simulation device 10 is simple in structure and operation, not only can be low in cost and convenient to carry, but also can be used for accurately simulating the actual working condition of a vehicle, so that the electromagnetic compatibility detection result of the electric power steering simulation device 5 is accurate.
Note that, since the electric booster 5 is a main working component in the electric power steering system, the electromagnetic compatibility of the electric power steering system is mainly the electromagnetic compatibility for detecting the electric booster 5, and therefore, only the electromagnetic compatibility for detecting the electric booster 5 is required. In addition, the electric power steering simulation apparatus 10 according to the embodiment of the present invention only simulates a steering wheel state under an actual working condition (a straight-line driving condition and a steering driving condition) of a vehicle and a corresponding working state of the electric power steering apparatus 5, and when detecting the electromagnetic compatibility of the electric power steering apparatus 5, an electromagnetic testing apparatus is required to detect the electromagnetic compatibility.
According to the electric power steering simulation device 10, the electric power steering simulation device 10 is simple in structure and operation, low in cost and convenient to carry can be guaranteed, the electric power steering simulation device 10 can be guaranteed to accurately simulate the actual working condition of a vehicle, and therefore the electromagnetic compatibility detection result of the electric power steering device 5 can be guaranteed to be accurate.
Further, as shown in fig. 1, the power plant may include: the spring 221, the guide rod 21 penetrates the spring 221, and one end of the guide rod 21 far away from the input shaft 1 is connected with the spring 221, when the spring 221 has a rebound force, the spring 221 applies an axial force to the guide rod 21.
That is, the guide rod 21 is urged in the axial direction by the repulsive force of the spring 221 when it is compressed or extended, and the guide rod 21 and the input shaft 1 are interlocked with each other.
In a specific embodiment, the deformation (compression amount or tension amount) of the control spring 221 may be used to control the axial force of the guide rod 21, and further control the torque force at the input shaft 1, so as to ensure that the electric power steering simulation apparatus 10 may simulate the feedback torque received by the input shaft 1 of the vehicle under different working conditions, and ensure that the electric power steering simulation apparatus 10 may accurately simulate the actual working conditions of the vehicle.
Further, as shown in fig. 1, the power plant may further include: the first support seat 222 and the second support seat 223, the first support seat 222 is located at an end of the spring 221 close to the input shaft 1, the second support seat 223 is located at an end of the spring 221 far from the input shaft 1, the spring 221 is suitable for being abutted between the first support seat 222 and the second support seat 223, the guide rod 21 is suitable for being sequentially arranged through the first support seat 222, the spring 221 and the second support seat 223, and the second support seat 223 is suitable for moving relative to the first support seat 222.
That is to say, the two ends of the spring 221 are respectively provided with the first supporting seat 222 and the second supporting seat 223, and the guide rod 21 sequentially penetrates through the first supporting seat 222, the spring 221 and the second supporting seat 223, wherein the second supporting seat 223 can move relative to the guide rod 21, therefore, when the second supporting seat 223 moves along the guide rod 21, the first supporting seat 222 and the second supporting seat 223 exert an acting force on the spring 221, so that the spring 221 generates a moving force on the second supporting seat 223 under the action of its own elastic force, and further generates an axial force on the guide rod 21.
Further, the first support seat 222 is provided with a first through hole, one end of the guide rod 21 is suitable for penetrating the first through hole, the other end of the guide rod 21 is movably connected with the second support seat 223, when the second support seat 223 moves along the guide rod 21, the distance between the second support seat 223 and the first support seat 222 changes, so that the spring 221 has a certain resilience, and further, an axial force can be applied to the guide rod 21.
In the embodiment, by controlling the distance between the second support seat 223 and the first support seat 222, the rebounding force of the spring 221 can be controlled, and further the axial force of the guide rod 21 can be controlled, so as to simulate the feedback torque of the input shaft 1 under different vehicle conditions. Moreover, the power device has a simple structure, can ensure that the cost of the electric power steering simulator 10 is low, and is simple to operate.
Further, the guide rod 21 is in threaded connection with the second support seat 223, the guide rod 21 is provided with an external thread, and the second support seat 223 is provided with an internal thread.
In the embodiment, the adjusting screw plug 224 is disposed on the outer side of the second supporting seat 223, and the adjusting screw plug 224 is disposed with an internal thread capable of being in threaded engagement with the guide rod 21, so that when the axial force of the spring 221 on the guide rod 21 needs to be adjusted, the distance between the first supporting seat 222 and the second supporting seat 223 can be adjusted by only rotating the adjusting screw plug.
Further, the electric power steering simulator 10 may further include: the pull rod 6 is connected with the guide rod 21, the pull rod 6 is parallel to the axis of the guide rod 21, a rack portion is arranged on the pull rod 6, and the input shaft 1 is in transmission fit with the rack portion through a gear.
That is, the guide rod 21 and the input shaft 1 are indirectly in gear-rack transmission fit through the pull rod 6, so that linkage between the guide rod 21 and the input shaft 1 is realized, and further, when the guide rod 21 has an axial force, a torque for rotating the input shaft 1 can be applied to the input shaft.
Further, the pull rod 6 is in threaded connection with the guide rod 21, one of the pull rod 6 and the guide rod 21 is provided with internal threads, and the other one of the pull rod 6 and the guide rod 21 is provided with external threads.
That is, the tie bar 6 is detachably connected to the guide bar 21, and therefore, it is possible to ensure that the electric power steering simulator 10 is convenient to carry.
In other embodiments, the pull rod 6 and the guide rod 21 may be the same rod.
According to some embodiments of the present invention, the electric power steering simulator 10 may further include: a housing 7, the input shaft 1 is inserted into the housing 7, and the locking device 3 includes: the fixing block 31 is fixedly connected with the baffle 32, the baffle 32 is fixedly connected with the shell 7, the fixing block 31 is connected with the baffle 32, and the fixing block 31 is suitable for locking the input shaft 1, so that when the guide rod 21 applies rotating torque to the input shaft 1, the locking device 3 can lock the input shaft 1, and a rudder-keeping state of a vehicle during turning is simulated.
In particular, the electric booster 5 is formed as an electric motor.
Another object of the present invention is to provide a method for detecting electromagnetic compatibility of an electric power steering system, using the electric power steering simulator 10, including the steps of:
s1: the electric power assisting device 5 is electrically connected with a power supply, an IG switch is arranged between the electric power assisting device 5 and the power supply, a computer end is provided with a CANoe device and a CANape device, the CANoe device and the CANape device are respectively electrically connected with the electric power assisting device 5, wherein the CANoe device CAN simulate CAN network signals of a vehicle for the electric power assisting device 5, and the CANoe device CAN monitor the working state of the electric power assisting device 5.
S2: the IG switch is electrified to electronic booster unit 5, and when power device applyed the axial force to guide arm 21, locking means 3 carried out the locking to input shaft 1, and input shaft 1 has the pivoted trend, and torque sensor 4 detects the moment of torsion of input shaft 1 department, and with detected signal transmission to electronic booster unit 5, and corresponding helping hand moment is exported to electronic booster unit 5, and the electric current and the moment of electronic booster unit 5 output are monitored through the CANape equipment to the computer.
S3: the axial force applied to the guide rod 21 by the power device is adjusted until the CANape device monitors that the current output by the electric power assisting device 5 is a specific stable value, the torque is recorded, and at the moment, the electromagnetic compatibility of the electric power assisting device 5 is tested by using an electromagnetic testing device for simulating the rudder-protecting state when a vehicle turns.
S4: the axial force applied to the guide rod 21 by the power device is removed, the computer monitors that the output current of the electric power assisting device 5 is 0A through the CANape device, the torque at the moment is recorded, the electromagnetic testing device is used for testing the electromagnetic compatibility of the electric power assisting device 5 at the moment in a state of simulating the straight running or standby state of a vehicle.
The method for detecting the electromagnetic compatibility of the electric power steering system can simulate the straight-line running state or the standby state of a vehicle and the steering state of the vehicle, and enables the electric power assisting device 5 to input corresponding power assisting torque so as to simulate the working state of the electric power assisting device 5, further test the electromagnetic compatibility of the electric power assisting device 5, and has simple and reliable operation process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An electric power steering simulator, comprising:
an input shaft (1);
a steering torque simulation device (2), the steering torque simulation device (2) comprising: the guide rod (21) and the power device are suitable for applying axial force to the guide rod (21) so that the guide rod (21) moves axially or has an axial movement trend, and the guide rod (21) is linked with the input shaft (1);
a locking device (3), said locking device (3) being adapted to lock said input shaft (1);
a torque sensor (4), the torque sensor (4) being adapted to detect a torque of the input shaft (1);
the electric power assisting device (5), the electric power assisting device (5) is electrically connected with the torque sensor (4), and the electric power assisting device (5) outputs corresponding power assisting torque according to the torque detected by the torque sensor (4);
the electric power steering simulator (10) is formed such that: when the power device does not apply axial force to the guide rod (21), the guide rod (21) and the input shaft (1) are still, and the electric power steering simulation device (10) is in a vehicle straight-going simulation state;
when the power device applies an axial force to the guide rod (21), the locking device (3) locks the input shaft (1), the input shaft (1) has a tendency of rotating, the torque sensor (4) detects the torque at the input shaft (1) and transmits a detection signal to the electric power assisting device (5), the electric power assisting device (5) outputs a corresponding power assisting moment, and at the moment, the electric power assisting steering simulating device (10) is in a vehicle steering simulating state.
2. The electric power steering simulator according to claim 1, wherein the power unit includes: the guide rod (21) penetrates through the spring (221), one end, far away from the input shaft (1), of the guide rod (21) is connected with the spring (221), and when the spring (221) has rebound force, the spring (221) exerts axial force on the guide rod (21).
3. The electric power steering simulator of claim 2, wherein the power plant further comprises: first supporting seat (222) and second supporting seat (223), first supporting seat (222) are located being close to of spring (221) the one end of input shaft (1), second supporting seat (223) are located keeping away from of spring (221) the one end of input shaft (1), just spring (221) are suitable for to end first supporting seat (222) with between second supporting seat (223), guide arm (21) are suitable for wearing to establish in proper order first supporting seat (222), spring (221) and second supporting seat (223), just second supporting seat (223) be suitable for first supporting seat (222) remove.
4. The electric power steering simulator according to claim 3, wherein the first support base (222) is provided with a first through hole through which one end of the guide bar (21) is adapted to pass, and the other end of the guide bar (21) is movably connected to the second support base (223), and a distance between the second support base (223) and the first support base (222) is changed when the second support base (223) moves along the guide bar (21).
5. The electric power steering simulator according to claim 4, wherein the guide bar (21) is threadedly coupled to the second support base (223), the guide bar (21) is externally threaded, and the second support base (223) is internally threaded.
6. The electric power steering simulator according to claim 1, further comprising: pull rod (6), pull rod (6) with guide arm (21) link to each other, pull rod (6) with the axis of guide arm (21) is parallel, just be equipped with rack portion on pull rod (6), input shaft (1) with rack portion realizes the transmission cooperation through the gear.
7. The electric power steering simulator according to claim 6, wherein the tie rod (6) is threadedly engaged with the guide bar (21), one of the tie rod (6) and the guide bar (21) is internally threaded, and the other of the tie rod (6) and the guide bar (21) is externally threaded.
8. The electric power steering simulator according to claim 1, wherein the electric power steering simulator (10) further comprises: a housing (7), the input shaft (1) being inserted into the housing (7), the locking device (3) comprising: fixed block (31) and baffle (32), baffle (32) with casing (7) fixed connection, fixed block (31) with baffle (32) link to each other, just fixed block (31) are suitable for the locking input shaft (1).
9. Electric power steering simulation device according to any of claims 1-8, characterized in that the electric power assist device (5) is formed as an electric motor.
10. A method for detecting an electromagnetic compatibility capability of an electric power steering system using an electric power steering simulator (10) according to any one of claims 1 to 9, characterized by comprising the steps of:
s1: the electric power assisting device (5) is electrically connected with a power supply, an IG (insulated gate array) switch is arranged between the electric power assisting device (5) and the power supply, a CANoe device and a CANape device are arranged at a computer end, and the CANoe device and the CANape device are respectively and electrically connected with the electric power assisting device (5);
s2: the IG switch is used for electrifying the electric power assisting device (5), when the power device applies axial force to the guide rod (21), the locking device (3) is used for locking the input shaft (1), the input shaft (1) has a rotating trend, the torque sensor (4) is used for detecting the torque at the input shaft (1) and transmitting a detection signal to the electric power assisting device (5), the electric power assisting device (5) outputs corresponding power assisting torque, and the computer monitors the current and the torque output by the electric power assisting device (5) through the CANape equipment;
s3: adjusting the axial force applied to the guide rod (21) by the power device until the CANape equipment monitors that the current output by the electric power assisting device (5) is a specific stable value, recording the torque, and testing the electromagnetic compatibility of the electric power assisting device (5) by using an electromagnetic testing device;
s4: the axial force applied to the guide rod (21) by the power device is removed, the computer monitors that the output current of the electric power assisting device (5) is 0A through the CANape device, the torque at the moment is recorded, and the electromagnetic compatibility of the electric power assisting device (5) is tested by the electromagnetic testing device.
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| CN202010486661.5A CN113758732A (en) | 2020-06-01 | 2020-06-01 | Electric power steering simulator and method for detecting electric power steering system |
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| CN202010486661.5A CN113758732A (en) | 2020-06-01 | 2020-06-01 | Electric power steering simulator and method for detecting electric power steering system |
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