Steering pump speed control method, system, electronic device and readable storage medium

Abstract

This application discloses a steering pump speed control method, system, electronic device, and readable storage medium, applicable to the field of vehicle steering control technology. The steering pump speed control method comprises: upon detecting a steering demand of a target vehicle while driving, obtaining a steering-related signal from the target vehicle; determining the steering speed demand of the target vehicle based on the steering-related signal; and controlling the speed of a steering pump to be controlled of the target vehicle based on the steering speed demand. This application addresses the technical problem of poor energy efficiency of vehicle steering pumps.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle steering control, and in particular to a steering pump speed control method, system, electronic device, and readable storage medium. Background Art

[0002] With the continuous development of automobiles, hydraulic power steering systems have become standard in the industry. The steering pump, which serves as the power source of the hydraulic power steering system, has also ushered in considerable development. In order to avoid other risks caused by excessive hydraulic oil flow generated by the steering pump, the steering pump will be designed specifically.

[0003] At present, for new energy heavy-duty truck models, in order to reduce the energy loss caused by the hydraulic power steering system, an electric steering pump solution is adopted. Among them, the speed of the electric steering pump is usually set to a fixed speed ratio, and can also be set in combination with the vehicle speed. That is, the higher the current vehicle speed, the lower the speed of the steering pump. However, since the steering demand of the vehicle changes dynamically during driving, the steering pump speed cannot match the steering demand in real time. That is, the hydraulic oil flow provided by the steering pump speed cannot match the steering force actually required for the steering demand, which makes it easy to lose energy. Therefore, the energy-saving effect of the current vehicle steering pump is poor. Summary of the Invention

[0004] The main purpose of this application is to provide a steering pump speed control method, system, electronic device and readable storage medium, aiming to solve the technical problem of poor energy saving effect of vehicle steering pump in the prior art.

[0005] To achieve the above objectives, the present application provides a steering pump speed control method, which is applied to a steering pump speed control system. The steering pump speed control method includes:

[0006] When a vehicle steering demand of a target vehicle is detected during driving, obtaining a steering-related signal of the target vehicle;

[0007] determining a steering speed requirement of the target vehicle according to the steering-related signal;

[0008] According to the steering speed requirement, the speed of the steering pump to be controlled of the target vehicle is controlled.

[0009] To achieve the above object, the present application also provides a steering pump speed control system, which includes an acquisition unit, a determination unit and a steering pump controller, wherein the acquisition unit and the determination unit both include a main controller, or both include the steering pump controller, wherein

[0010] The acquisition unit is configured to acquire a steering-related signal of the target vehicle when detecting a vehicle steering demand of the target vehicle during driving;

[0011] The determining is used to determine the steering speed requirement of the target vehicle based on the steering-related signal;

[0012] The steering pump controller is used to control the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement.

[0013] The present application also provides an electronic device, which includes: at least one processor and a memory communicatively connected to the at least one processor, the memory storing instructions executable by the at least one processor, and the instructions being executed by the at least one processor so that the at least one processor can execute the steps of the steering pump speed control method as described above.

[0014] The present application also provides a computer-readable storage medium, on which is stored a program for implementing a steering pump speed control method. When the program of the steering pump speed control method is executed by a processor, the steps of the steering pump speed control method as described above are implemented.

[0015] The present application also provides a computer program product, comprising a computer program, which implements the steps of the steering pump speed control method as described above when the computer program is executed by a processor.

[0016] The present application provides a steering pump speed control method, system, electronic device and readable storage medium, which are applied to a steering pump speed control system. That is, when a vehicle steering demand of a target vehicle is detected during driving, a steering-related signal of the target vehicle is obtained; based on the steering-related signal, the steering speed demand of the target vehicle is determined; and based on the steering speed demand, the speed of the steering pump to be controlled of the target vehicle is controlled.

[0017] When controlling the steering pump speed of a detected image, the present application first obtains a steering-related signal associated with the steering of the target vehicle when the vehicle steering demand of the target vehicle during driving is detected, and then determines the steering speed demand of the target vehicle for the steering pump in real time through the steering-related signal, and then controls the speed of the steering pump to be controlled of the target vehicle according to the steering demand, that is, controls the steering pump to be controlled of the target vehicle to operate at a speed that meets the steering speed demand of the target vehicle.

[0018] Since the steering pump to be controlled operates at a speed that meets the steering speed requirement of the target vehicle, the hydraulic oil flow provided by the steering pump at this speed can match the actual steering requirement of the target vehicle, thereby making the steering pump speed of the target vehicle match the steering requirement in real time. That is, the steering pump can provide the hydraulic oil flow required for steering of the target vehicle in real time during driving, thereby achieving the purpose of reducing the energy consumption of the hydraulic power steering system.

[0019] Based on this, the present application detects the vehicle steering demand of the target vehicle in real time during driving, and controls the steering pump to be controlled to operate at a speed that meets the steering speed demand of the target vehicle when the real-time vehicle steering demand is detected, thereby achieving the purpose of real-time matching of the vehicle's steering demand during driving with the speed of the steering pump to be controlled. That is, it overcomes the technical defect that the steering demand of the vehicle during driving changes dynamically, resulting in the steering pump speed being unable to match the steering demand in real time, which in turn makes it easy to lose energy. Therefore, the energy-saving effect of the vehicle steering pump is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 A flow chart of the steering pump speed control method provided in Example 1 of the present application;

[0023] Figure 2 A schematic diagram of steering pump speed control for a non-intelligent driving vehicle according to the steering pump speed control method provided in Example 1 of the present application;

[0024] Figure 3 A schematic diagram of steering pump speed control for an intelligent driving vehicle using a steering pump speed control method according to the first embodiment of the present application;

[0025] Figure 4 A schematic diagram of a hydraulic power steering system using a steering pump speed control method according to the first embodiment of the present application;

[0026] Figure 5 A flow chart of a steering pump speed control method provided in Example 2 of the present application;

[0027] Figure 6This is a schematic diagram of the structure of the steering pump speed control system provided in Example 3 of the present application;

[0028] Figure 7 This is a schematic diagram of the structure of the electronic device provided in Example 4 of the present application.

[0029] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] Example 1

[0032] First of all, it should be understood that the steering pump in the hydraulic power steering system of a car is usually connected to the engine by means of gears or splines. It can convert the mechanical energy of the engine into hydraulic pressure to drive the steering cylinder, and then output the adjusted steering force from the steering power to drive the car to steer. For cars in different segments, different steering pump solutions will be set up specifically. For example, traditional fuel vehicles use a variable displacement steering pump solution, while new energy vehicles often use an electric steering pump solution. Since the steering pump will produce hydraulic oil in the process of generating steering force, in order to avoid other risks caused by excessive hydraulic oil flow, an overflow valve will be set inside the steering pump. , and the overflowing hydraulic oil not only causes energy waste, but also increases the temperature of the hydraulic power steering system, thereby reducing the service life of the hydraulic oil. Therefore, in order to improve the above problems, an electric steering pump has been developed, so that the steering pump speed is not correlated with the engine speed, and no additional flow is generated. Among them, the speed of the electric steering pump can be set to a fixed speed ratio, and can also be set in combination with the current vehicle speed. However, since the steering demand of the vehicle changes dynamically during driving, the steering pump speed cannot match the steering demand in real time, and energy loss is still prone to occur. Therefore, there is an urgent need for a method to improve the energy-saving effect of the vehicle steering pump.

[0033] The present application embodiment provides a steering pump speed control method. In the embodiment 1 of the steering pump speed control method of the present application, referring to Figure 1 , the steering pump speed control method includes:

[0034] Step S10, when a vehicle steering demand of a target vehicle is detected during driving, obtaining a steering-related signal of the target vehicle;

[0035] Step S20, determining the steering speed requirement of the target vehicle according to the steering-related signal;

[0036] Step S30 : controlling the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement.

[0037] In this embodiment, it should be noted that although Figure 1 A logical sequence is shown, but in some cases, the steps shown or described may be performed in an order different from that shown here. The steering pump speed control method is applied to a steering pump speed control system, wherein the steering pump speed control system may be a hydraulic power steering system of a target vehicle, and the hydraulic power steering system is used to provide steering power for the steering of the target vehicle. In one practicable manner, the working mode of the hydraulic power steering system may be as follows: the power supply device of the target vehicle provides a stable power supply to the electric steering pump (EHPS) product through an inverter, drives the electric steering pump (EHPS) product to operate at a rated speed, and provides steering assistance for the target vehicle. The target vehicle is used to characterize a vehicle having the steering pump speed control method, and may specifically be a commercial vehicle or a passenger car. The vehicle steering demand is used to characterize the demand for the vehicle to change its driving direction at a certain time step. For example, in one practicable manner, assuming that the target vehicle is a heavy commercial vehicle, and the driver drives the target vehicle in lane A to the adjacent vehicle B, then when the driver manipulates the steering wheel to change lanes, it is determined that the target vehicle has a steering demand.

[0038] In addition, it should be noted that the steering-related signal is used to represent a signal associated with the vehicle steering operation. The steering-related signal can be collected through a sensor or a CAN network. The steering speed requirement is used to represent the steering pump speed required when the vehicle is turning. The steering speed requirement of the target vehicle can be determined through the steering-related signal, that is, there is a corresponding relationship between the steering-related signal and the steering speed requirement. For example, in one feasible method, the corresponding steering pump calibrated speed can be matched to the vehicle steering requirement of the target vehicle according to the steering-related signal. When the steering-related signal is X, the steering pump speed required for the target vehicle to turn is m. When the steering-related signal is Y, the steering pump speed required for the target vehicle to turn is n. Among them, the steering-related signal X and the steering-related signal Y are steering-related signals collected under different steering amplitudes, and the steering pump speed m and the steering pump speed n are different steering pump calibrated speeds.

[0039] In addition, it should be noted that the steering pump to be controlled is used to represent the steering pump waiting to be controlled on the target vehicle, wherein the steering pump to be controlled always runs at a certain preset speed, wherein the speed can be the basic speed provided by default when the target vehicle is not turning, or the steering speed provided when the target vehicle made the last turn. After determining the steering speed requirement, the controller of the target vehicle can control the steering pump to be controlled to adjust from the preset speed to the calibrated speed, thereby outputting a hydraulic oil flow that matches the vehicle steering requirement of the target vehicle. The vehicle steering requirement can be detected through the vehicle steering signal. The vehicle steering signal is a signal used to represent the vehicle performing a steering operation, specifically a steering angle signal or a steering control signal, wherein the steering angle signal is used to represent the steering angle of the vehicle, and the steering control signal is used to control the vehicle to turn. The acquisition method of the above-mentioned signals can refer to the acquisition method of the steering-related signal, which will not be repeated here.

[0040] As an example, steps S10 to S30 include: if a steering control signal is received from a controller during the driving process of the target vehicle, it is determined that the target vehicle has a vehicle steering demand, and the steering-related signal of the target vehicle is collected through a sensor; based on the signal value of the steering-related signal, a calibrated steering pump speed corresponding to the vehicle steering demand of the target vehicle is determined; and the speed of the steering pump to be controlled of the target vehicle is adjusted from a preset speed to the calibrated steering pump speed.

[0041] The embodiment of the present application receives the steering control signal sent by the controller in real time during the vehicle's driving process, and collects the steering-related signal related to the steering operation of the target vehicle through the sensor after receiving the steering control signal, and then determines the steering pump speed calibration value that matches the vehicle steering demand of the target vehicle according to the signal value of the steering-related signal, that is, determines the steering pump calibration speed required when the target vehicle performs steering, and finally controls the steering pump to be controlled of the target vehicle to operate at the steering pump calibration speed. Since the steering-related signal can objectively reflect the steering operation of the target vehicle, the steering pump to be controlled can provide the hydraulic oil flow that matches the vehicle steering demand of the target vehicle in real time, rather than relying solely on the speed of the target vehicle to calibrate the steering pump speed when controlling the speed of the steering pump to be controlled. , comprehensively calibrates the speed of the steering pump to be controlled from multiple dimensions related to the steering operation. Since the target vehicle is not only limited by the vehicle speed when steering, but also by factors such as the steering amplitude, the calibrated speed comprehensively calibrated from multiple dimensions can accurately match the steering operation of the target vehicle, thereby avoiding the waste of hydraulic oil due to the calibrated speed that depends on the target vehicle speed being too high. Therefore, the purpose of extreme energy saving can be achieved by adjusting the speed of the steering pump to be controlled of the target vehicle in real time. At the same time, due to the adaptability of the hydraulic oil flow, the heat generation of the hydraulic power steering system can be reduced, the temperature of the hydraulic power steering system is reduced, and no additional heat dissipation device is required, which simultaneously improves the service life of the components and hydraulic oil of the hydraulic power steering system.

[0042] The step of determining the steering speed requirement of the target vehicle according to the steering-related signal includes:

[0043] Step A10: detecting the driving condition of the target vehicle according to the steering-related signal;

[0044] Step A20: If it is detected that the target vehicle is in a normal driving condition, determining a steering speed requirement of the target vehicle according to the steering-related signal;

[0045] Step A30: if it is detected that the target vehicle is in a specific driving condition, obtaining the retention time of the target vehicle in the specific driving condition;

[0046] Step A40: Determine the steering speed requirement of the target vehicle according to the corresponding relationship between the steering-related signal and the retention time.

[0047] In this embodiment, it should be noted that since the signal value of the steering-related signal is always in dynamic change, if a calibrated speed that matches the steering demand of the target vehicle is provided for the steering-related signal in real time, the processing volume in the steering pump speed control process will be too large. Different steering-related signals under the same working conditions have commonalities and can more accurately feedback the steering demand of the target vehicle. Then, by distinguishing the driving condition of the target vehicle under the current steering-related signal, the calibrated steering pump speed required for the target vehicle to perform steering can be determined.

[0048] In addition, it should be noted that the conventional driving condition is used to characterize the driving condition of the target vehicle when performing conventional steering operations, which may be a turning condition or a lane changing condition, etc. The specific driving condition is used to characterize the driving condition of the target vehicle when performing specific steering operations, which may be a U-turn condition, a traffic jam condition, a traffic light waiting condition, and a long-term idling condition, etc. The residence time is used to characterize the stay time of the target vehicle under the current specific driving condition.

[0049] In addition, it should be noted that the steering-related signal carries a steering condition identifier, which is used to distinguish whether the target vehicle is in a normal driving condition or a specific driving condition. Steering operations performed under normal driving conditions can accurately reflect the steering speed requirements of the target vehicle through the steering-related signal alone. However, steering operations performed under specific driving conditions are distinguished by the retention time due to the high similarity of the steering scenarios. For example, in one practicable embodiment, assuming that the target vehicle is in a specific driving condition, when the retention time of the target vehicle in the specific driving condition is between 30 seconds and 120 seconds, the specific driving condition of the target vehicle is determined to be a traffic light waiting condition; when the retention time of the target vehicle in the driving condition is between 120 seconds and 180 seconds, the specific driving condition of the target vehicle is determined to be a traffic jam condition; and when the retention time of the target vehicle in the driving condition is greater than 180 seconds, the specific driving condition of the target vehicle is determined to be a long-term idling condition.

[0050] As an example, steps A10 to A40 include: detecting the driving condition of the target vehicle according to the steering condition identifier carried by the steering-related signal; if it is detected that the target vehicle is in a normal driving condition, determining the steering pump calibrated speed corresponding to the vehicle steering demand of the target vehicle according to the signal value of the steering-related signal; if it is detected that the target vehicle is in a specific driving condition, calculating the residence time of the target vehicle in the specific driving condition through the timestamp of the steering-related signal transmitted by the sensor; and determining the residence time of the target vehicle in the specific driving condition according to the residence time. The steering pump calibrated speed corresponding to the target vehicle's steering demand is determined based on the actual driving condition and the steering-related signal. For example, in one practicable embodiment, assuming that the target vehicle's dwell time under a specific driving condition is 130 seconds, the target vehicle's actual driving condition is a traffic jam condition, and the calibrated steering pump speed is determined to be 600 r / min. If the target vehicle's dwell time under the specific driving condition is 250 seconds, the target vehicle's actual driving condition is a long-term idle condition, and the steering pump speed is determined to be a speed that causes the steering pump to enter a dormant shutdown mode. Because the calibrated steering pump speed that matches the target vehicle's steering demand is determined using different methods under different operating conditions, the calibrated steering pump speed value can still meet the actual demand of the target vehicle. At the same time, the calibrated steering pump speed is uniformly set for the same operating condition, rather than providing a calibrated speed that matches the target vehicle's steering demand in real time based on the steering-related signal. This reduces the amount of signal processing required during steering pump speed control.

[0051] The steering-related signal includes a driving speed signal and a steering angle signal, and the step of controlling the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement includes:

[0052] Step B10, determining a basic speed of the steering pump to be controlled according to a correspondence between the driving speed signal and the driving condition of the target vehicle;

[0053] Step B20: adjusting the basic speed to a target steering speed corresponding to the steering speed requirement according to the steering angle signal.

[0054] In this embodiment, it should be noted that the driving speed signal is used to represent the speed at which the vehicle is turning. The driving speed signal can specifically be a braking system signal, a power system signal, a vehicle speed signal, a gear signal, a throttle signal, and a handbrake signal, etc. The steering angle signal can specifically be a steering wheel angle signal, a steering wheel angular velocity signal, and a steering wheel angular acceleration signal, etc. When the target vehicle is at different driving speeds, the steering pump controller will assign different basic speeds to the steering pump according to different driving conditions, and then adjust the speed of the steering pump to be controlled according to the steering angle signal. For example, under normal driving conditions, when the speed of the target vehicle is 0 km / h to 3 km / h, the steering pump controller will assign different basic speeds to the steering pump according to different driving conditions, and then adjust the speed of the steering pump to be controlled according to the steering angle signal. km / h, the controller output frequency can be set to 100Hz, and the motor speed of the steering pump to be controlled at the current controller output frequency is adjusted to 1500r / min. In traffic jam conditions, when the speed of the target vehicle is between 0km / h and 3km / h, the controller output frequency can be set to 40Hz, and the motor speed of the steering pump to be controlled at the current controller output frequency is 600r / min. Similarly, when the speed of the target vehicle is between 0km / h and 3km / h, and the target vehicle is waiting at a traffic light, the controller output frequency and the motor speed of the steering pump to be controlled are adjusted to 66.6Hz and 1000r / min respectively.

[0055] Among them, after the basic speed of different specific driving conditions is given, if the corresponding judgment conditions are not met, the steering pump calibrated speed is adjusted to the steering pump calibrated speed under the normal driving conditions. For example, the red and green waiting condition is determined by the vehicle speed signal, throttle opening signal, steering wheel angular velocity signal and retention time. That is, the vehicle speed is between 0km / h and 3km / h (calibrable), the throttle signal opening is 0, and the steering pump controller monitors the steering wheel angular velocity signal at all times, the steering wheel angular velocity input is ≤5° / s (calibrable), and the duration exceeds 30s (calibrable), then it is determined to be a traffic light waiting condition, the controller output frequency is changed to 66.6Hz (calibrable), and the corresponding motor speed is adjusted to 1000r / min; when one of the above conditions is not met, it is determined that the driving If the driver needs to start the vehicle, the controller output frequency is changed to 100Hz (calibrable), and the motor speed of the corresponding steering pump to be controlled is adjusted to 1500r / min. For another example, when the long-term idling condition meets the vehicle speed between 0km / h and 3km / h (calibrable), the handbrake signal is the handbrake, the gear signal is neutral, the throttle signal opening is 0, and the steering pump controller always monitors the steering wheel angular velocity signal, the steering wheel angular velocity input is ≤5° / s (calibrable), and the duration exceeds 180s (calibrable), then the electric steering pump stops and enters sleep. When it is detected that any of the above is not met, it is determined that the driver wants to move the vehicle again, and the controller output frequency is adjusted to 100Hz, and the motor speed of the corresponding steering pump to be controlled is adjusted to 1500r / min.

[0056] Among them, after the basic speed of the normal driving condition is given, the motor speed of the steering pump to be controlled is adjusted by monitoring the steering angle signal. For example, when the vehicle speed is between 3km / h and 20km / h, the controller output frequency is 86.6Hz, corresponding to a basic speed of 1300 / min. The controller monitors the steering wheel angular velocity signal in real time. When the steering wheel angular velocity input is ≥360° / s, the controller output frequency is 100Hz, and the motor speed of the steering pump to be controlled is adjusted to 1500r / min. When the vehicle speed is between 20 and 40km / h, the controller output frequency is 80Hz, corresponding to a basic speed of 1200r / min. If the steering wheel angular velocity input is ≥360° / s, the controller output frequency is 90Hz, corresponding to a motor speed of 1350r / min. If the angular velocity input is ≥432° / s, the controller output frequency is 100Hz, corresponding to a motor speed of 1500r / min. , the vehicle speed is between 60 and 80 km / h, the controller output frequency is 66.6 Hz, and the basic speed is 1000 r / min. If the steering wheel angular velocity input is ≥288° / s, the controller output frequency is 80 Hz, and the corresponding motor speed is 1200 r / min. If the angular velocity input is ≥324° / s, the controller output frequency is 90 Hz, and the corresponding motor speed is 1350 r / min. If the angular velocity input is ≥400° / s, the controller output frequency is 100 Hz, and the corresponding motor speed is adjusted to 1500 r / min. Among them, the above-mentioned motor speed, angular velocity input and controller output frequency can all be calibrated values. The reason for setting the speed of the target vehicle at power-on to 1500 r / min is that the steering wheel speed corresponding to the speed is 1.5 turns / s. This is the maximum limit of the driver turning the steering wheel is 1.5 turns / s, which is the maximum value set under extreme working conditions.

[0057] As an example, steps B10 to B20 include: obtaining the driving speed of the target vehicle through the driving speed signal; if the driving condition of the target vehicle is the conventional driving condition, querying the basic speed calibrated for the steering pump to be controlled based on the driving speed; if the driving condition of the target vehicle is the specific driving condition, querying the basic speed calibrated for the steering pump to be controlled based on the actual driving condition and the driving speed of the target vehicle in the specific driving condition; and adjusting the calibrated basic speed to the target steering speed corresponding to the steering speed requirement according to the steering angle signal, wherein the target steering speed is a calibrated value.

[0058] The target steering speed includes a first target steering speed and a second target steering speed, and the step of adjusting the basic speed to the target steering speed corresponding to the steering speed requirement according to the steering angle signal includes:

[0059] Step C10, detecting whether the steering angle signal is less than a preset angle signal threshold;

[0060] Step C20: If yes, adjust the base speed to the first target steering speed;

[0061] Step C30: If not, the basic speed is adjusted to the second target steering speed, wherein the first target steering speed is less than the basic speed, and the second target steering speed is greater than the basic speed.

[0062] In this embodiment, it should be noted that, under normal working conditions, the steering speed adjusted is lower than the base speed of the steering pump to be controlled. However, under the condition of turning on the spot, the hydraulic steering power system is subject to the greatest resistance and pressure. As the oil temperature rises, the leakage within the system will increase. In order to ensure the need for quick steering during turning on the spot, the steering pump speed can be increased to compensate for the loss caused by internal leakage. For example, the first target steering speed can be 1000r / min, 1200r / min or 1500r / min, etc., and the second target speed can be 1650r / min. The preset angle signal threshold can be set according to actual needs. In one feasible method, the preset angle signal threshold can be set to 360°.

[0063] As an example, steps C10 to C30 include: detecting whether the steering angle represented by the steering angle signal is less than a preset angle represented by a preset angle signal threshold; if it is detected that the steering angle is less than the preset angle, adjusting the base speed to the first target steering speed; if it is detected that the steering angle is not less than the preset angle, adjusting the base speed to the second target steering speed, wherein the first target steering speed is less than the base speed and the second target steering speed is greater than the base speed. Because the base speed is adjusted to the first target steering speed, which is less than the base speed, when the steering angle is less than the preset angle, and because the base speed is adjusted to the second target steering speed, which is greater than the base speed, when the steering angle is greater than the preset angle, this achieves the goal of meeting the special steering speed requirements of both normal operating conditions and turn-on-the-spot conditions.

[0064] Wherein, before the step of acquiring the steering-related signal of the target vehicle when a vehicle steering demand of the target vehicle is detected during driving, the steering pump speed control method further includes:

[0065] Step D10, generating a vehicle steering demand in response to a steering operation performed by a driver during driving of the target vehicle; or,

[0066] Step D20: determining the real-time driving state of the target vehicle according to the driving state signal of the target vehicle during driving; and generating the vehicle steering demand according to the real-time driving state.

[0067] In this embodiment, it should be noted that for non-intelligent driving vehicles or auxiliary vehicles (target vehicles controlled by a driver) and advanced intelligent vehicles (target vehicles without driver control), the generation methods of vehicle steering requirements are different. For example, referring to Figure 2 , Figure 2 This is a schematic diagram of the steering pump speed control for non-intelligent driving vehicles. First, the steering pump always runs at a certain starting speed (but much lower than the speed of the steering pump of current vehicles); when the driver turns the steering wheel, the external angle sensor or the angle sensor inside the steering gear can transmit the collected steering wheel angle / angular velocity signal / angular acceleration signal to the steering pump controller through the CAN network. At the same time, external controllers such as instruments transmit vehicle speed signals, gear signals, throttle signals, and handbrake signals to the steering pump controller through the CAN network; then the steering pump controller determines the working condition of the vehicle based on the received signals, and assigns different basic speeds to the steering pump based on different working conditions; then, based on the steering wheel angle / angular velocity / angular acceleration signals, the power supply frequency of the electric steering pump is adjusted in real time to control the speed of the steering pump, refer to Figure 3 , Figure 3 This is a schematic diagram of the steering pump speed control of an intelligent driving vehicle. First, the steering pump always runs at a certain starting speed; then, external controllers such as instruments transmit vehicle speed signals, brake system-related signals, power system-related signals, camera signals, and lidar signals to the main controller through the CAN network, and the steering pump controller transmits the actual steering pump speed signal to the main controller through the CAN network; the steering gear controller transmits the actual steering wheel angle signal, angular velocity signal, and angular acceleration signal to the main controller through the CAN network; the main controller judges and makes decisions based on the vehicle's operating status and outputs the electric steering pump speed signal to the steering pump controller; the steering pump controller adjusts the power supply output frequency, indirectly controls the steering pump speed, and feeds back the actual steering pump speed to the main controller in real time through the CAN network, thereby completing the steering control of the steering pump to be controlled.

[0068] As an example, steps D10 to D20 include: in response to the steering operation performed by the driver during the driving of the target vehicle, collecting a steering angle signal through an external angle sensor of the target vehicle, and collecting a driving speed signal through an external controller such as an instrument, and generating a vehicle steering demand based on the steering angle signal and the driving speed signal; obtaining a driving status signal of the target vehicle during the driving process, and detecting the real-time driving status of the target vehicle based on the driving status signal, wherein the driving status signal is used to characterize the real-time driving status of the target vehicle, and specifically can be a speed signal, a braking system-related signal, a power system-related signal, a camera signal, and a lidar signal, etc.; generating the vehicle steering demand based on the real-time driving status.

[0069] The step of generating the vehicle steering demand according to the real-time driving state includes:

[0070] Step E10, obtaining the driving environment information and original path planning information of the target vehicle;

[0071] Step E20, predicting the turning probability of the target vehicle based on the driving environment information, the original path planning information and the real-time driving status;

[0072] Step E30 : When it is detected that the turning probability is greater than a preset turning probability threshold, generating the vehicle turning request.

[0073] In this embodiment, it should be noted that, during the steering pump speed control process of an advanced intelligent vehicle, since signal processing and steering pump speed adjustment both require a certain amount of time, and driving behavior is not subjectively influenced by the driver, in order to accurately respond to the target vehicle's steering needs, the target vehicle's steering behavior can be predicted at the previous time step. The original path planning information is used to represent the initial planned path of the current trip, and the driving environment information is used to represent the vehicle's current driving environment. For example, in one practicable embodiment, assume that the target vehicle's original planned path is P1-P2-P3, where P1, P2, and P3 are roads at different longitudes and latitudes. The original planned path fully represents the transition from P1 to P2, and P2 to P3 require steering operations. Since the real-time driving status can objectively reflect the target vehicle's current driving state, such as vehicle speed, the driving turning probability label formed by combining the driving environment information, the original path planning information, and the real-time driving status can accurately predict the target vehicle's turning probability at the current time step. The preset turning probability threshold can be set as needed, such as 50% or 60%.

[0074] As an example, steps E10 to E30 include: obtaining the driving environment information and original path planning information of the target vehicle; combining the driving environment information, the original path planning information and the real-time driving status into a driving turning probability label, and inputting the driving turning probability label into a preset turning probability prediction model to obtain the turning probability of the target vehicle; detecting whether the turning probability is greater than a preset turning probability threshold, if it is detected that the turning probability is greater than the preset turning probability threshold, generating the vehicle turning demand, if it is detected that the turning probability is not greater than the preset turning probability threshold, not generating the vehicle turning demand.

[0075] In one practicable manner, referring to Figure 4 , Figure 4 Schematic diagram of the hydraulic power steering system, where 11 is the steering wheel, 12 is the steering oil tank, 13 is the angle sensor, 14 is the steering gear / electronically controlled steering gear, 15 is the steering knuckle arm, 16 is the first steering knuckle, 17 is the tire, 18 is the first trapezoidal arm, 19 is the second steering knuckle, and 20 is the second trapezoidal arm. For non-intelligent driving target vehicles, steering pumps with different speeds produce hydraulic oil of different flow rates. The hydraulic oil is transmitted to the steering gear through a high-pressure pipe. The steering gear rotation speed is transmitted to the driver through the steering column and steering wheel. The driver senses the steering wheel rotation speed to determine whether it is the steering wheel speed he or she requires, thereby forming a closed loop. For intelligent driving vehicles, the steering pump controller adjusts the power supply output frequency, indirectly controls the steering pump speed, and feeds back the actual steering pump speed to the main controller in real time through the CAN network. At the same time, the steering gear controller feeds back the angle signal, angular velocity signal, and angular acceleration signal to the main controller through the CAN network in real time, thereby realizing two closed loops.

[0076] An embodiment of the present application provides a steering pump speed control method, that is, when a vehicle steering demand of a target vehicle during driving is detected, a steering-related signal of the target vehicle is obtained; based on the steering-related signal, the steering speed demand of the target vehicle is determined; and based on the steering speed demand, the speed of the steering pump to be controlled of the target vehicle is controlled.

[0077] When controlling the steering pump speed of an image to be detected, the embodiment of the present application first obtains a steering-related signal associated with the steering of the target vehicle when the vehicle steering demand of the target vehicle during driving is detected, and then determines the steering speed demand of the target vehicle for the steering pump in real time through the steering-related signal, and then controls the speed of the steering pump to be controlled of the target vehicle according to the steering demand, that is, controls the steering pump to be controlled of the target vehicle to operate at a speed that meets the steering speed demand of the target vehicle.

[0078] Since the steering pump to be controlled operates at a speed that meets the steering speed requirement of the target vehicle, the hydraulic oil flow provided by the steering pump at this speed can match the actual steering requirement of the target vehicle, thereby making the steering pump speed of the target vehicle match the steering requirement in real time. That is, the steering pump can provide the hydraulic oil flow required for steering of the target vehicle in real time during driving, thereby achieving the purpose of reducing the energy consumption of the hydraulic power steering system.

[0079] Based on this, the present application detects the vehicle steering demand of the target vehicle in real time during driving, and controls the steering pump to be controlled to operate at a speed that meets the steering speed demand of the target vehicle when the real-time vehicle steering demand is detected, thereby achieving the purpose of real-time matching of the vehicle's steering demand during driving with the speed of the steering pump to be controlled. That is, it overcomes the technical defect that the steering demand of the vehicle during driving changes dynamically, resulting in the steering pump speed being unable to match the steering demand in real time, which in turn makes it easy to lose energy. Therefore, the energy-saving effect of the vehicle steering pump is improved.

[0080] Example 2

[0081] Further, refer to Figure 5 In another embodiment of the present application, the same or similar contents as those in the first embodiment can be referred to above and will not be described in detail. On this basis, after the step of adjusting the base speed to the target steering speed corresponding to the steering speed requirement based on the steering angle signal, the steering pump speed control method further includes:

[0082] Step F10, obtaining a response time difference between the vehicle steering demand and the target steering speed;

[0083] Step F20 : When it is detected that the response time difference does not match a preset response time threshold, the target steering speed is adjusted.

[0084] In this embodiment, it should be noted that due to a certain lag time between detecting the vehicle steering demand of the target vehicle and controlling the steering pump to be controlled of the target vehicle to operate at the target steering speed, such as the message response time difference between the controllers, the electric pump power supply time and the hydraulic response time, in order to avoid the problem of the speed not matching the steering demand of the target vehicle caused by the speed control lag, corresponding optimization can be performed after the target steering speed is obtained. For example, in one feasible method, assuming that the response time difference between the vehicle steering demand and the target steering speed is too large, it can be determined that the target steering speed cannot match the vehicle steering demand of the target vehicle, wherein the preset response time threshold can be set by oneself, such as 200ms or 250ms.

[0085] As an example, steps F10 to F20 include: respectively obtaining a first timestamp for generating the vehicle steering demand and a second timestamp for obtaining the target steering speed, and using the time difference between the first timestamp and the second timestamp as a response time difference; if it is detected that the response time difference is less than or equal to a preset response time threshold, reducing the target steering speed; if it is detected that the response time difference is greater than the preset response time threshold, increasing the target steering speed.

[0086] An embodiment of the present application provides a method for adjusting a target steering speed. Specifically, the method involves obtaining a response time difference between a vehicle steering demand and a target steering speed; and adjusting the target steering speed upon detecting a mismatch between the response time difference and a preset response time threshold. By detecting the response time difference between the vehicle steering demand and the target steering speed and adaptively adjusting the target steering speed of a steering pump to be controlled based on the relationship between the response time difference and the preset response time threshold, the method avoids the problem of speed mismatching the target vehicle steering demand caused by speed control lag, rather than always treating the target steering speed as the speed that matches the vehicle steering demand. This improves the accuracy of steering pump speed control.

[0087] Example 3

[0088] The present application also provides a steering pump speed control system, referring to Figure 6 The steering pump speed control system includes an acquisition unit, a determination unit and a steering pump controller, wherein the acquisition unit and the determination unit both include a main controller, or both include the steering pump controller, wherein,

[0089] The acquisition unit 101 is configured to acquire a steering-related signal of the target vehicle when a vehicle steering demand of the target vehicle is detected during driving;

[0090] The determining unit 102 is configured to determine the steering speed requirement of the target vehicle according to the steering-related signal;

[0091] The steering pump controller 103 is configured to control the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement.

[0092] Optionally, the determining unit 102 is further configured to:

[0093] detecting the driving condition of the target vehicle according to the steering-related signal;

[0094] If it is detected that the target vehicle is in a normal driving condition, determining a steering speed requirement of the target vehicle according to the steering-related signal;

[0095] If it is detected that the target vehicle is in a specific driving condition, obtaining the retention time of the target vehicle in the specific driving condition;

[0096] The steering speed requirement of the target vehicle is determined according to the corresponding relationship between the steering-related signal and the retention time.

[0097] Optionally, the steering-related signal includes a driving speed signal and a steering angle signal, and the determining unit 102 is further configured to:

[0098] determining a base speed of the steering pump to be controlled according to a correspondence between the driving speed signal and the driving condition of the target vehicle;

[0099] The basic speed is adjusted to a target steering speed corresponding to the steering speed requirement according to the steering angle signal.

[0100] Optionally, the target steering speed includes a first target steering speed and a second target steering speed, and the determining unit 102 is further configured to:

[0101] Detecting whether the steering angle signal is less than a preset angle signal threshold;

[0102] If yes, adjusting the base speed to the first target steering speed;

[0103] If not, the basic speed is adjusted to the second target steering speed, wherein the first target steering speed is less than the basic speed, and the second target steering speed is greater than the basic speed.

[0104] Optionally, the steering pump speed control system is further used to:

[0105] generating a vehicle steering request in response to a steering operation performed by a driver during travel of the target vehicle; or,

[0106] The real-time driving state of the target vehicle is determined according to the driving state signal of the target vehicle during the driving process; and the vehicle steering demand is generated according to the real-time driving state.

[0107] Optionally, the steering pump speed control system is further used to:

[0108] Obtaining the target vehicle's driving environment information and original path planning information;

[0109] Predicting a turning probability of the target vehicle based on the driving environment information, the original path planning information, and the real-time driving status;

[0110] When it is detected that the turning probability is greater than a preset turning probability threshold, the vehicle turning request is generated.

[0111] Optionally, the steering pump speed control system is further used to:

[0112] Obtaining a response time difference between the vehicle steering demand and a target steering speed;

[0113] When it is detected that the response time difference does not match a preset response time threshold, the target steering speed is adjusted.

[0114] The steering pump speed control system provided by the present invention utilizes the steering pump speed control method described in the aforementioned embodiment to address the technical issue of poor energy conservation in vehicle steering pumps. Compared to the prior art, the steering pump speed control system provided by the present invention achieves the same beneficial effects as the steering pump speed control method described in the aforementioned embodiment. Other technical features of the steering pump speed control system are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0115] Example 4

[0116] An embodiment of the present invention provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the steering pump speed control method in the above-mentioned embodiment one.

[0117] Reference below Figure 7 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present disclosure. The electronic devices in the embodiments of the present disclosure may include, but are not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), PMPs (portable multimedia players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7 The electronic device shown is only an example and should not limit the functions and scope of use of the embodiments of the present disclosure.

[0118] like Figure 7 As shown, the electronic device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. Various programs and data required for the operation of the electronic device are also stored in the RAM 1004. The processing device 1001, the ROM 1002, and the RAM 1004 are connected to each other via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus.

[0119] Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, hard disk, etc.; and communication devices 1009. The communication devices can allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an electronic device with various systems, it should be understood that it is not required to implement or have all of the systems shown. More or fewer systems may be implemented or have instead.

[0120] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network via the communication device 1009, or installed from the storage device 1003, or installed from the ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment of the present disclosure are performed.

[0121] The electronic device provided by the present invention utilizes the steering pump speed control method described in the aforementioned embodiment to address the technical issue of poor energy conservation in vehicle steering pumps. Compared to the prior art, the electronic device provided by the present invention achieves the same beneficial effects as the steering pump speed control method described in the aforementioned embodiment. Other technical features of the electronic device are the same as those disclosed in the aforementioned embodiment and are not further detailed here.

[0122] It should be understood that various parts of the present disclosure can be implemented with hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in an appropriate manner.

[0123] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

[0124] Example 5

[0125] This embodiment provides a computer-readable storage medium having computer-readable program instructions stored thereon, and the computer-readable program instructions are used to execute the steering pump speed control method in the above embodiment.

[0126] The computer-readable storage medium provided in the embodiment of the present invention can be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium can be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination thereof.

[0127] The computer-readable storage medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0128] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by an electronic device, the electronic device: upon detecting the vehicle steering requirement of the target vehicle during driving, obtains the steering-related signal of the target vehicle; determines the steering speed requirement of the target vehicle based on the steering-related signal; and controls the speed of the steering pump to be controlled of the target vehicle based on the steering speed requirement.

[0129] Computer program code for performing the operations of the present disclosure may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0130] The flow charts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, program segment, or a part of code, and the module, program segment, or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart, can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0131] The modules involved in the embodiments described in this disclosure may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0132] The computer-readable storage medium provided by the present invention stores computer-readable program instructions for executing the aforementioned steering pump speed control method, thereby resolving the technical issue of poor energy efficiency in vehicle steering pumps. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided by the present invention are similar to those of the steering pump speed control method provided by the aforementioned embodiment, and are not further elaborated here.

[0133] Example 6

[0134] The present application also provides a computer program product, comprising a computer program, which implements the steps of the steering pump speed control method as described above when the computer program is executed by a processor.

[0135] The computer program product provided in this application solves the technical problem of poor energy conservation in vehicle steering pumps. Compared with the prior art, the beneficial effects of the computer program product provided in the embodiments of the present invention are the same as those of the steering pump speed control method provided in the above embodiments, and are not further elaborated here.

[0136] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent processing scope of the present application.

Claims

1. A steering pump speed control method, characterized in that: Applied to a steering pump speed control system, the steering pump speed control method includes: When a vehicle steering demand of a target vehicle is detected during driving, obtaining a steering-related signal of the target vehicle; detecting the driving condition of the target vehicle according to the steering-related signal; If it is detected that the target vehicle is in a normal driving condition, determining a steering speed requirement of the target vehicle according to the steering-related signal; If it is detected that the target vehicle is in a specific driving condition, obtaining the retention time of the target vehicle in the specific driving condition; determining a steering speed requirement of the target vehicle based on a correspondence between the steering-related signal and the retention time, wherein the steering pump calibrated speed corresponding to the steering speed requirement under the same specific driving condition is uniform; According to the steering speed requirement, the speed of the steering pump to be controlled of the target vehicle is controlled.

2. The steering pump speed control method according to claim 1, characterized in that: The steering-related signal includes a driving speed signal and a steering angle signal. The step of controlling the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement includes: determining a base speed of the steering pump to be controlled according to a correspondence between the driving speed signal and the driving condition of the target vehicle; The basic speed is adjusted to a target steering speed corresponding to the steering speed requirement according to the steering angle signal.

3. The steering pump speed control method according to claim 2, characterized in that: The target steering speed includes a first target steering speed and a second target steering speed. The step of adjusting the basic speed to the target steering speed corresponding to the steering speed requirement according to the steering angle signal includes: Detecting whether the steering angle signal is less than a preset angle signal threshold; If yes, adjusting the base speed to the first target steering speed; If not, the basic speed is adjusted to the second target steering speed, wherein the first target steering speed is less than the basic speed, and the second target steering speed is greater than the basic speed.

4. The steering pump speed control method according to claim 1, characterized in that: Before the step of acquiring the steering-related signal of the target vehicle when a vehicle steering demand of the target vehicle is detected during driving, the steering pump speed control method further includes: generating a vehicle steering request in response to a steering operation performed by a driver during travel of the target vehicle; or, The real-time driving state of the target vehicle is determined according to the driving state signal of the target vehicle during driving; and the vehicle steering demand is generated according to the real-time driving state.

5. The steering pump speed control method according to claim 4, characterized in that: The step of generating the vehicle steering demand according to the real-time driving state includes: Obtaining the target vehicle's driving environment information and original path planning information; Predicting a turning probability of the target vehicle based on the driving environment information, the original path planning information, and the real-time driving state; When it is detected that the turning probability is greater than a preset turning probability threshold, the vehicle turning request is generated.

6. The steering pump speed control method according to claim 2, characterized in that: After the step of adjusting the base speed to the target steering speed corresponding to the steering speed requirement according to the steering angle signal, the steering pump speed control method further includes: Obtaining a response time difference between the vehicle steering demand and a target steering speed; When it is detected that the response time difference does not match a preset response time threshold, the target steering speed is adjusted.

7. A steering pump speed control system, characterized in that: The steering pump speed control system includes an acquisition unit, a determination unit and a steering pump controller, wherein the acquisition unit and the determination unit both include a main controller, or both include the steering pump controller, wherein: The acquisition unit is configured to acquire a steering-related signal of the target vehicle when detecting a vehicle steering demand of the target vehicle during driving; The determining unit is configured to detect the driving condition of the target vehicle according to the steering-related signal; If it is detected that the target vehicle is in a normal driving condition, determining a steering speed requirement of the target vehicle according to the steering-related signal; If it is detected that the target vehicle is in a specific driving condition, obtaining the retention time of the target vehicle in the specific driving condition; determining a steering speed requirement of the target vehicle based on a correspondence between the steering-related signal and the retention time, wherein the steering pump calibrated speed corresponding to the steering speed requirement under the same specific driving condition is uniform; The steering pump controller is used to control the speed of the steering pump to be controlled of the target vehicle according to the steering speed requirement.

8. An electronic device, characterized in that: The electronic device comprises: at least one processor; a memory communicatively coupled to the at least one processor; The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the steps of the steering pump speed control method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a program for implementing a steering pump speed control method, and the program for implementing a steering pump speed control method is executed by a processor to implement the steps of the steering pump speed control method according to any one of claims 1 to 6.

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