CN114802422B - Evaluation method based on whole vehicle EPS system combined with motor controller - Google Patents
Evaluation method based on whole vehicle EPS system combined with motor controller Download PDFInfo
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- CN114802422B CN114802422B CN202210358092.5A CN202210358092A CN114802422B CN 114802422 B CN114802422 B CN 114802422B CN 202210358092 A CN202210358092 A CN 202210358092A CN 114802422 B CN114802422 B CN 114802422B
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- whole vehicle
- steering force
- motor
- fixed disc
- motor controller
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Classifications
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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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention discloses an evaluation method based on an EPS system of a whole vehicle and combined with a motor controller, which comprises the following steps: s1: setting the steering force characteristic of the whole vehicle and setting the allowable deviation of the steering force; s2: comparing performance deviation of steering force characteristics when different stabilizing bars are matched; s3: the steering force Modification characteristics are analyzed. The invention provides an evaluation method based on an EPS system of a whole vehicle and a motor controller, which can meet the requirement that EPS products are input from a target of the system to calibration and acceptance of the whole vehicle and has extremely high applicability.
Description
Technical Field
The present invention relates to the field of EPS systems.
Background
And by formulating EPS evaluation flow specifications, the target input of the whole vehicle for system functional safety and performance development is met, and technical support is provided for the development of the system based on the whole vehicle and regulations. And the steering motor controller is a high-power steering motor controller, and compared with other existing steering motor controllers of passenger cars, the steering motor controller needs more efficient heat dissipation so as to ensure the whole car to run.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides an evaluation method based on the EPS system of the whole vehicle and a motor controller, which can meet the requirement that EPS products are input from the target of the system to the calibration acceptance of the whole vehicle and has extremely high applicability.
The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the invention is as follows:
The evaluation method based on the whole vehicle EPS system and the motor controller comprises the following steps:
S1: setting the steering force characteristic of the whole vehicle and setting the allowable deviation of the steering force;
S2: comparing performance deviation of steering force characteristics when different stabilizing bars are matched;
s3: the steering force Modification characteristics are analyzed.
Further, in S1, setting a linear graph according to the steering force characteristic; a linear map is derived from the setting of the steering force allowable deviation.
Further, in S2, a linear graph is obtained according to the performance deviation occurring when matching different stabilizer bars.
Further, a corresponding linearity linear diagram of the whole vehicle with the steering characteristic of the central area is obtained according to the S1 and the S2.
Further, when the steering force Modification characteristics are analyzed in the step S3, the adjustment conditions of the steering wheel in the bending-in, bending-out and bending-out processes are counted, and 3 conditions are set as quantitative evaluation of the steering force Modification characteristics.
Further, the whole vehicle comprises a motor and a controller for controlling the motor; the motor is fixed on the controller through a fixed disc; the side wall of the fixed disc is provided with a plurality of ventilation grooves which are arranged in a surrounding manner; a rotating structure is arranged in the fixed disc; the rotating end of the rotating structure circumferentially rotates around the axis of the fixed disc, and the rotating end of the rotating structure blows off gas in the fixed disc and is discharged through the ventilation groove, and the rotating end of the rotating structure blows off the surfaces of the motor and the controller.
Further, the rotating structure includes a rotating shaft; the rotating device in the fixed disc is in driving connection with one end of the rotating shaft; a turning rod is arranged on the side wall of the middle part of the rotating shaft; the top and the bottom of the turning rod are symmetrically provided with air pushing plates respectively, and the air pushing plates are arranged on the turning rod through elastic reset keys; the rotating shaft drives the air pushing plate to rotate through the overturning rod so as to push and disperse air in the fixed disc to the outside;
the middle part of the edge of one side of the air pushing plate far away from the turning rod is embedded with a magnetic block; magnetic strips are fixedly arranged at the positions of the magnetic blocks on the side walls of the motor and the controller; the magnetic blocks and the magnetic strips are mutually exclusive; when the air pushing plate rotates to the position of the magnetic strip, the air pushing plate swings under the action of the magnetic block.
The beneficial effects are that: the air pushing plate can efficiently dissipate heat of the motor and the controller, and reduces the influence of heat; including but not limited to the following benefits:
1) The air pushing plate drives the magnetic blocks to rotate and turn over, and the air pushing plate correspondingly opens or folds under the action of mutual repulsion of the magnetic strips and the magnetic blocks and continuously rotates and turns over, so that air in the fixed disc can be well extruded, and the air in the fixed disc can be well pushed out of the fixed disc;
2) In the motion process of the air pushing plate, due to the wind force, the elastic diaphragm bulges to one side opposite to the motion direction, so that air can be gathered, when the air pushing plate swings in a turning mode, the elastic diaphragm moves correspondingly, air in the elastic diaphragm can be extruded out, the air cannon can be thrown into a compartment similarly, the diffusion of hot air is promoted, and the heat dissipation of a motor and a controller is better.
Drawings
FIG. 1 is a step diagram of an evaluation method;
FIG. 2 is a steering force characteristic setting chart;
FIG. 3 is an exemplary diagram of allowable deviation in a turn;
FIG. 4 is a graph of performance bias for meeting Torque Buildup targets;
FIG. 5 is a graph of performance bias for not meeting Torque Buildup targets;
FIG. 6 is a graph showing exemplary SWA and Yaw center zone domain responses;
FIG. 7 is a diagram showing exemplary features of Yaw, ay, dRoll Vs SWA;
FIG. 8 is a Case01 steering wheel input waveform;
FIG. 9 is a Case02 steering wheel input waveform;
FIG. 10 is a Case03 steering wheel input waveform;
FIG. 11 is a diagram of a stationary disc construction;
FIG. 12 is a diagram of a rotational structure;
Fig. 13 is a diagram of the structure of the elastic diaphragm.
Description of the embodiments
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-13: the evaluation method based on the whole vehicle EPS system and the motor controller comprises the following steps:
S1: setting the steering force characteristic of the whole vehicle and setting the allowable deviation of the steering force;
S2: comparing performance deviation of steering force characteristics when different stabilizing bars are matched;
s3: the steering force Modification characteristics are analyzed.
S1, setting and obtaining a linear graph according to steering force characteristics; fig. 2 is a linear diagram showing an example of steering force characteristic setting; the steering force characteristic changes in a gradual enhancement trend; obtaining a linear graph according to the setting of the allowable deviation of the steering force; FIG. 3 is a linear diagram of an example steering force bias setting; the stronger the steering force characteristic, the larger the steering force allowable deviation.
In S2, a linear graph is obtained according to the performance deviation occurring when different stabilizer bars are matched, as illustrated in fig. 4 and 5, which are linear graphs of the performance deviation occurring when different stabilizer bars are different, and the difference of the performance deviation occurring when the stabilizer bars pass through is large.
According to S1 and S2, obtaining a corresponding linearity linear diagram of the whole vehicle with the steering characteristic of the central area, as shown in fig. 6 and 7, illustrating the response linearity of the whole vehicle with the steering characteristic of the central area, wherein fig. 6 is a SWA and Yaw central area domain response diagram, and the response diagram shows gradual reduction trend change and has larger reduction degree when the response diagram is 1-1.5; FIG. 7 is a characteristic diagram of Yaw, ay and dRoll, wherein the Ay change curve is in transverse normal distribution, and the change trend is small; yaw and dRoll are progressively increasing in trend, dRoll increases less than Yaw after-12.
S3, when the steering force Modification characteristics are analyzed, the adjustment working conditions of the steering wheel in the bending-in, bending-out and bending-out processes are counted, and 3 working conditions are set to be used for quantitative evaluation of the steering force Modification characteristics; the 3 working conditions include:
case01: and (3) initially maintaining the corner input to reach the expected set lateral acceleration, driving the vehicle to the opposite direction at a certain moment after maintaining the stable state, correcting the corner input speed to the original corner at the same corner speed, and repeating the process after the vehicle body is restored to be stable. Fig. 8 is a Case01 steering wheel input waveform diagram.
Case02: the initial rotation angle input is kept to reach the expected set lateral acceleration, after the stable state is kept, the rotation angle input speed is 300+/-45 deg/s, then the rotation angle input speed is corrected to the original rotation angle at the same rotation angle speed, and the process is continuously repeated for 3 times. Fig. 9 is a Case02 steering wheel input waveform diagram.
Case03: the vehicle runs straight, then turns at an angular speed of 90deg/s +/-15 deg/s, in the turning process, turns to the opposite direction at a speed of 300deg/s, and then still maintains 90deg/s +/-15 deg/s turning input until the vehicle enters a steady-state turning process; the out-bending process is the same as the in-bending process. Fig. 10 is a Case03 steering wheel input waveform diagram; at low speed, the lateral acceleration has little influence on the steering force Modification characteristic; at high speeds, the greater the lateral acceleration, the greater the impact on the steering force Modification characteristics.
In the set working condition, the steering wheel angle can be adjusted according to the place and the vehicle.
The whole vehicle comprises a motor and a controller for controlling the motor; the motor is fixed on the controller through the fixed disc 1, and the controller is electrically connected with the motor; the fixed disc 1 is of a cylindrical pipe body structure; the side wall of the fixed disc 1 is provided with a plurality of ventilation grooves 11 which are arranged in a surrounding manner; the inside of the fixed disc 1 is connected with the outside through a ventilation groove 11; a rotating structure 2 is arranged inside the fixed disc 1; the rotating end of the rotating structure 2 circumferentially rotates around the axis of the fixed disc 1, and the gas in the fixed disc 1 is blown away by the rotating end of the rotating structure 2 and discharged through the ventilation groove 11, and the rotating end of the rotating structure 2 blows the surface of the motor and the controller. The motor passes through the fixed disk setting on the controller, and the fixed disk is inside to contact in motor and controller lateral wall respectively, and revolution mechanic can be with the gaseous pushing away of fixed disk when the fixed disk internal motion, and then can blow the heat dissipation to motor and controller, and then reduces the influence of heat to motor and controller. The motor adopts the flat wire motor, the temperature rise of the flat wire motor is small, the motor generates less heat, the effect of small temperature rise is more stable in work for the condition of large working strength of the steering motor of special or large-sized vehicles, the internal temperature rise of the flat wire motor is small, and the heat dissipation of the outside is matched, so that the influence of the temperature on the motor can be well reduced, and the efficiency is improved; in addition, the parallel ink stone pipes of the controller are few, the temperature rise of the controller is small, and the working performance with small temperature rise is stable; the same external heat dissipation can also dissipate heat of the controller, and the controller is prevented from being easily overheated and damaged by being matched with the characteristic of small internal temperature rise of the controller.
The rotating structure 2 includes a rotating shaft 21; the rotating shaft 21 is coaxially arranged with the fixed disk 1; the rotating device in the fixed disc 1 is in driving connection with one end of a rotating shaft 21; the other end of the rotating shaft 21 is a free end; a turning rod 22 is arranged on the side wall of the middle part of the rotating shaft 21, and a rotating device on the side wall of the rotating shaft 21 is in driving connection with one end of the turning rod 22; the plurality of overturning rods 22 are circumferentially arranged around; the overturning rod 22 is arranged at the inner wall of the fixed disc 1 at intervals at one end far away from the rotating shaft 21; the top and the bottom of the turnover rod 22 are symmetrically provided with air pushing plates 23 respectively, and the air pushing plates 23 are arranged on the turnover rod 22 through elastic reset keys; the symmetrical air pushing plates 23 are arranged along the length direction of the fixed disc 1; the inside of the fixed disc 1 is divided into a plurality of compartments 24 by a plurality of air pushing plates 23 on the turnover rods 22; the rotating shaft 21 drives the air pushing plate 23 to rotate through the turning rod 22 so as to push the air in the fixed disc 1 to the outside; and the turnover rod can drive the gas pushing plate to turn over in the fixed disk, so that the gas in each compartment can be stirred to flow, heat dissipation is promoted, the flow of the gas in the fixed disk can be well promoted through the rotation and the turning of the gas pushing plate, and then the heat generated by the motor and the controller can be blown away through the movement of the gas pushing plate, so that the effect of heat dissipation on the motor and the control is achieved.
The middle part of the edge of the side, far away from the turning rod 22, of the air pushing plate 23 is embedded with a magnetic block 231; magnetic strips 232 are fixedly arranged at the positions of the magnetic blocks 231 on the side walls of the motor and the controller; the magnetic blocks 231 and the magnetic strips 232 are mutually exclusive; when the air pushing plate 23 rotates to the position of the magnetic strip 232, the air pushing plate 23 swings due to the magnetic block 231; the magnetic strips are arranged in a circumferential manner and correspond to the number of the air pushing plates, the air pushing plates are arranged at intervals with the inner wall of the fixed disc, the air pushing plates drive the magnetic blocks to rotate and turn over, and the air pushing plates correspondingly open or fold due to the mutual repulsion effect of the magnetic strips and the magnetic blocks and continuously rotate and turn over, so that the air in the fixed disc can be well extruded, and the air in the fixed disc can be well pushed out of the fixed disc; when the air pushing plate rotates and does not overturn, the air pushing plate is vertically arranged and rotates in the fixed disc, when the air pushing plate drives the magnetic blocks to move to the positions of the magnetic strips, the repulsive action of the magnetic blocks causes the symmetrically arranged air pushing plates to overturn towards one side opposite to the rotating direction, so that the symmetrically arranged air pushing plates form a V shape, and then the air in the compartment can be extruded, the flow of the air is promoted, and the heat dissipation is promoted; when the air pushing prevention plate drives the magnetic block to separate from the magnetic strip, the air pushing plate swings correspondingly; when the air pushing plate rotates and overturns, the air pushing plate rotates, overturns and swings due to the magnetic repulsion effect and the overturning and rotating effect, and the air in the fixed disc is stirred, so that the heat dissipation effect is improved.
A plurality of through holes 233 are formed in the side wall of the air pushing plate 23 in a penetrating manner; an elastic diaphragm 234 is adaptively arranged in the through hole 233; when the air pushing plate 23 moves, the elastic membrane 234 is correspondingly raised; in the motion process of the air pushing plate, due to the wind force, the elastic diaphragm bulges to one side opposite to the motion direction, so that air can be gathered, when the air pushing plate swings in a turning mode, the elastic diaphragm moves correspondingly, air in the elastic diaphragm can be extruded out, the air cannon can be thrown into a compartment similarly, the diffusion of hot air is promoted, and the heat dissipation of a motor and a controller is better.
The above is merely a preferred embodiment of the present invention, which is not limited thereto, and modifications and variations may be made by those skilled in the art without departing from the principles described above, and such modifications and variations are also considered to be within the scope of the present invention.
Claims (7)
1. The evaluation method based on the whole vehicle EPS system and the motor controller is characterized by comprising the following steps of:
S1: setting the steering force characteristic of the whole vehicle and setting the allowable deviation of the steering force;
S2: comparing performance deviation of steering force characteristics when different stabilizing bars are matched;
s3: analyzing steering force Modification characteristics;
S3, when the steering force Modification characteristics are analyzed, the adjustment working conditions of the steering wheel in the bending-in, bending-out and bending-out processes are counted, and 3 working conditions are set to be used for quantitative evaluation of the steering force Modification characteristics; the 3 working conditions include:
Case01: initially maintaining the corner input to reach the expected set lateral acceleration, driving the vehicle to the opposite direction at a certain moment after maintaining the stable state, correcting the corner input to the original corner at the same corner speed at the corner input speed of 300deg/s +/-45 deg/s, and repeating the process after the vehicle body is restored to be stable;
Case02: initially maintaining the rotation angle input to reach the expected set lateral acceleration, after maintaining a stable state, driving the rotation angle input to the opposite direction at a certain moment, correcting the rotation angle input to the original rotation angle at the same rotation angle speed, and continuously repeating the process for 3 times;
Case03: the vehicle runs straight, then turns at an angular speed of 90deg/s +/-15 deg/s, in the turning process, turns to the opposite direction at a speed of 300deg/s, and then still maintains 90deg/s +/-15 deg/s turning input until the vehicle enters a steady-state turning process; the out-bending process is the same as the in-bending process.
2. The evaluation method of the whole vehicle-based EPS system in combination with the motor controller according to claim 1, characterized by: s1, setting and obtaining a linear graph according to steering force characteristics; a linear map is derived from the setting of the steering force allowable deviation.
3. The evaluation method of the whole vehicle-based EPS system in combination with the motor controller according to claim 2, characterized by: and S2, obtaining a linear graph according to performance deviation which occurs when different stabilizing bars are matched.
4. The evaluation method of the whole vehicle-based EPS system in combination with the motor controller according to claim 3, characterized in that: and (3) obtaining a corresponding linearity linear diagram of the whole vehicle with the steering characteristic of the central area according to the S1 and the S2.
5. The evaluation method of the whole vehicle-based EPS system combined with the motor controller, which is characterized in that: the whole vehicle comprises a motor and a controller for controlling the motor; the motor is fixed on the controller through a fixed disc (1); the side wall of the fixed disc (1) is provided with a plurality of ventilation grooves (11) which are arranged in a surrounding manner; a rotating structure (2) is arranged in the fixed disc (1); the rotating end of the rotating structure (2) circumferentially rotates around the axis of the fixed disc (1), gas in the rotating end of the rotating structure (2) blows off the fixed disc (1) and is discharged through the ventilation groove (11), and the rotating end of the rotating structure (2) blows off the surfaces of the motor and the controller.
6. The method for evaluating the whole vehicle-based EPS system in combination with the motor controller according to claim 5, characterized in that: the rotating structure (2) comprises a rotating shaft (21); the rotating device in the fixed disc (1) is in driving connection with one end of the rotating shaft (21); a turning rod (22) is arranged on the side wall of the middle part of the rotating shaft (21); the top and the bottom of the turnover rod (22) are symmetrically provided with air pushing plates (23) respectively, and the air pushing plates (23) are arranged on the turnover rod (22) through elastic reset keys; the rotating shaft (21) drives the air pushing plate (23) to rotate through the turning rod (22) so as to push and disperse air in the fixed disc (1) to the outside.
7. The method for evaluating the whole vehicle-based EPS system in combination with the motor controller according to claim 6, characterized in that: a magnetic block (231) is embedded in the middle of the edge of one side of the air pushing plate (23) far away from the turning rod (22); magnetic strips (232) are fixedly arranged at the positions of the magnetic blocks (231) on the side walls of the motor and the controller; the magnetic block (231) and the magnetic strip (232) are mutually exclusive; when the air pushing plate (23) rotates to the position of the magnetic strip (232), the air pushing plate (23) swings due to the action of the magnetic block (231).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210358092.5A CN114802422B (en) | 2022-04-07 | 2022-04-07 | Evaluation method based on whole vehicle EPS system combined with motor controller |
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| CN202210358092.5A CN114802422B (en) | 2022-04-07 | 2022-04-07 | Evaluation method based on whole vehicle EPS system combined with motor controller |
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| CN114802422A CN114802422A (en) | 2022-07-29 |
| CN114802422B true CN114802422B (en) | 2024-05-14 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003285753A (en) * | 2002-03-29 | 2003-10-07 | Mazda Motor Corp | Electric power steering device of automobile |
| WO2006045707A1 (en) * | 2004-10-21 | 2006-05-04 | Zf Lenksysteme Gmbh | Steering system for vehicles |
| JP2006142912A (en) * | 2004-11-17 | 2006-06-08 | Toyota Motor Corp | Vehicle steering device |
| DE102010024171A1 (en) * | 2010-06-17 | 2011-12-22 | Volkswagen Ag | Method for adjusting restoring moment of electromechanical steering system of vehicle, involves determining deviation based on applicable function, and defining momentary position of zero return position based on determined deviation |
| DE102012013690A1 (en) * | 2012-07-07 | 2014-01-09 | Volkswagen Aktiengesellschaft | Method for adapting steering wheel of driver assistance system for e.g. passenger car, involves adapting steering-restoring and steering-support forces applied on steering unit by vehicle as function of steering angle, based on detection |
| JP2017024449A (en) * | 2015-07-16 | 2017-02-02 | トヨタ自動車株式会社 | Vehicular steering apparatus |
| CN107238500A (en) * | 2017-06-02 | 2017-10-10 | 吉林大学 | Vehicle handling stability tests RES(rapid evaluation system) method for building up |
| CN109204458A (en) * | 2018-09-25 | 2019-01-15 | 清华大学 | A kind of autonomous driving vehicle turning angle of steering wheel tracking that EPS characteristic is unknown |
| JP2019172157A (en) * | 2018-03-29 | 2019-10-10 | マツダ株式会社 | Vehicular control apparatus |
| CN112959958A (en) * | 2021-03-24 | 2021-06-15 | 邱柔媚 | Trolley power system controller |
-
2022
- 2022-04-07 CN CN202210358092.5A patent/CN114802422B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003285753A (en) * | 2002-03-29 | 2003-10-07 | Mazda Motor Corp | Electric power steering device of automobile |
| WO2006045707A1 (en) * | 2004-10-21 | 2006-05-04 | Zf Lenksysteme Gmbh | Steering system for vehicles |
| JP2006142912A (en) * | 2004-11-17 | 2006-06-08 | Toyota Motor Corp | Vehicle steering device |
| DE102010024171A1 (en) * | 2010-06-17 | 2011-12-22 | Volkswagen Ag | Method for adjusting restoring moment of electromechanical steering system of vehicle, involves determining deviation based on applicable function, and defining momentary position of zero return position based on determined deviation |
| DE102012013690A1 (en) * | 2012-07-07 | 2014-01-09 | Volkswagen Aktiengesellschaft | Method for adapting steering wheel of driver assistance system for e.g. passenger car, involves adapting steering-restoring and steering-support forces applied on steering unit by vehicle as function of steering angle, based on detection |
| JP2017024449A (en) * | 2015-07-16 | 2017-02-02 | トヨタ自動車株式会社 | Vehicular steering apparatus |
| CN107238500A (en) * | 2017-06-02 | 2017-10-10 | 吉林大学 | Vehicle handling stability tests RES(rapid evaluation system) method for building up |
| JP2019172157A (en) * | 2018-03-29 | 2019-10-10 | マツダ株式会社 | Vehicular control apparatus |
| CN109204458A (en) * | 2018-09-25 | 2019-01-15 | 清华大学 | A kind of autonomous driving vehicle turning angle of steering wheel tracking that EPS characteristic is unknown |
| CN112959958A (en) * | 2021-03-24 | 2021-06-15 | 邱柔媚 | Trolley power system controller |
Non-Patent Citations (1)
| Title |
|---|
| 电动助力转向系统转向性能的主观评价方法;丁能根;薄颖;杨磊;马飞;;农业机械学报(第05期);第12-14页 * |
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| CN114802422A (en) | 2022-07-29 |
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