Full-dimensional intelligent electro-hydraulic power regulation and control system

Abstract

The invention discloses a full-dimensional intelligent electro-hydraulic power regulation and control system, which relates to the technical field of electro-hydraulic power regulation and control, and comprises a high-torque motor module, a lightweight speed change module, an integrated control module, an electro-hydraulic braking module, a dynamic load adaptation module, an energy recovery optimization module and an ADAS extension module, the high-torque motor module is used for outputting 1150Nm torque by adopting skewed slot winding design, and is matched with a full-skewed-tooth gearbox to reduce tooth surface contact stress; the light-weight speed change module is used for achieving noise reduction through an aluminum alloy shell and a helical tooth structure, recognizing the direction through a current type rotating speed sensor, and compressing the gear shifting time to be within 0.6 s. The integrated control module is used for integrating main motor driving, DC / DC conversion, air pump control and PDU functions and is compatible with range extending and fast charging topology through modular design; the electro-hydraulic brake module is used for decoupling a brake pedal and wheel end oil pressure, and cooperative regulation and control of energy recovery torque and hydraulic torque are achieved through high-pressure response.

Description

Technical Field

[0001] The present invention relates to the technical field of electro-hydraulic power regulation, and in particular to a full-dimensional intelligent electro-hydraulic power regulation system. Background Art

[0002] Hydraulic power control technology is a comprehensive solution that combines hydraulic principles with electronic control technologies. It is primarily used for power transmission and regulation in automobiles and other mechanical equipment. It uses liquid as a medium to transmit force and motion, and achieves precise control with the help of electronic sensors, controllers, and other components. Therefore, utilizing advanced technologies to improve the intelligence and safety of electro-hydraulic power control has become a pressing issue.

[0003] In the field of electro-hydraulic power control, in traditional motor and gearbox designs, due to unreasonable stator winding layout or improper gear pair design, significant tooth slot torque fluctuations and tooth surface contact stress concentration occur during high torque output, which not only affects transmission efficiency but also shortens the service life of mechanical components. In addition, the existing brake energy recovery system fails to fully utilize the energy during vehicle deceleration. The recovery strategy is not intelligent enough and cannot dynamically adjust the recovery intensity according to actual driving conditions, which limits the improvement of cruising range. Summary of the Invention

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the present invention provides a full-dimensional intelligent electro-hydraulic power control system to solve the problem in traditional motor and gearbox design, that is, due to unreasonable stator winding layout or improper gear pair design, significant tooth slot torque fluctuation and tooth surface contact stress concentration occur at high torque output, which not only affects the transmission efficiency but also shortens the service life of mechanical components. In addition, the existing brake energy recovery system fails to fully utilize the energy during vehicle deceleration, the recovery strategy is not intelligent enough, and the recovery intensity cannot be dynamically adjusted according to actual driving conditions, which limits the improvement of cruising range.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: In a first aspect, the present invention provides a full-dimensional intelligent electro-hydraulic power control system, comprising: High-torque motor module, lightweight transmission module, integrated control module, electro-hydraulic brake module, dynamic load adaptation module, energy recovery optimization module and ADAS expansion module; The high-torque motor module is designed to output 1150 Nm of torque using a skewed-slot winding design and is matched with a full-helical gearbox to reduce tooth surface contact stress; The lightweight transmission module is designed to achieve noise reduction through an aluminum alloy housing and helical gear structure, and uses a current-type speed sensor to identify direction, compressing the shift time to less than 0.6 seconds. The integrated control module is used to integrate the main motor drive, DC / DC conversion, air pump control and PDU functions, and is compatible with extended-range and fast-charging topologies through modular design; The electro-hydraulic brake module is used to decouple the brake pedal from the wheel-end oil pressure, and adopts high-pressure response to achieve coordinated control of energy recovery torque and hydraulic torque; The dynamic load adaptation module is used to dynamically adjust the motor output torque based on the vehicle weight and slope algorithm to match the AMT wiring harness specifications to reduce the failure rate; The energy recovery optimization module is used to feedback the speed direction through the current sensor to improve the braking energy recovery rate and increase the cruising range; The ADAS extension module is used to integrate AEB / ACC functional interfaces and ensure extended safety through high-voltage interlocking and active discharge circuits.

[0007] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, wherein: the skewed slot winding design is used to output 1150Nm torque, and is matched with a full helical gear transmission to reduce the tooth surface contact stress. The specific implementation method is as follows: The winding is arranged in a skewed slot structure in the motor stator core, with a skew angle of 15°±2°, which reduces the cogging torque fluctuation by more than 40%; The motor output shaft is connected to the gearbox input shaft through an involute spline, and the gear pair with a helical angle of 25° of the full-helical gearbox is used to even out the contact stress distribution on the tooth surface and reduce the peak stress by 30%. Under the condition of the motor's rated speed of 2000rpm, the radial / axial load of the gearbox input shaft is monitored by a six-dimensional force sensor to ensure that the gear contact scar area accounts for ≥85% under a torque of 1150Nm.

[0008] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, the aluminum alloy housing and helical gear structure are used to achieve noise reduction, and a current-type speed sensor is used to identify the direction, thereby compressing the shift time to less than 0.6s. The specific implementation method is as follows: The gearbox housing is cast from high-strength aluminum alloy, with a network of reinforcing ribs inside to reduce weight while ensuring structural rigidity. The housing surface is anodized to improve corrosion resistance, and locally thickened design is used in key stress-bearing areas. The gearbox gear set adopts a full helical tooth design, which reduces vibration and noise during transmission by optimizing tooth profile parameters and meshing characteristics. The gear is made of carburized alloy steel and is precision ground to ensure tooth surface accuracy. A dedicated lubrication oil system is used to achieve smooth transmission. Equipped with a high-sensitivity current-type speed sensor, which accurately identifies the rotation direction and speed by detecting changes in shaft current. The high-sensitivity current-type speed sensor adopts a redundant design and built-in self-diagnosis function, which monitors the system operating status in real time and feeds data back to the control unit; It adopts a two-axis pneumatic direct shift mechanism, equipped with a high-speed solenoid valve group and position sensor, and realizes gear switching through the shift logic algorithm; A cooling oil channel is integrated inside the housing to achieve forced lubrication and cooling through an oil pump; A modular wiring harness design is adopted, with the sensor harness, actuator harness and power harness arranged in layers and fixed through dedicated wire ducts.

[0009] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, the integrated main motor drive, DC / DC conversion, air pump control and PDU functions are compatible with extended range and fast charging topologies through modular design. The specific implementation method is as follows: A three-stage power conversion architecture is constructed, including a main motor drive unit using a three-phase full-bridge inverter topology, a DC / DC converter unit that converts energy between the high-voltage battery and the low-voltage system, and an auxiliary system power supply unit with integrated air and oil pump drive circuits. Set up multi-functional integrated interface, including: Main motor power interface, equipped with three-phase AC output terminals and motor temperature sensor interface; High-voltage DC interface, connected to the high-voltage busbar of the power battery pack; Low-voltage power interface, providing power supply for low-voltage electrical equipment in the vehicle; Auxiliary system control interface, connecting the air pump and oil pump actuators; Configure the topology switching logic, including: The range-extended mode topology realizes parallel power supply of the range extender and the power battery by controlling the switching of relays; Fast charging mode topology, which realizes direct connection between DC fast charging interface and battery pack through contactor control; Hybrid mode topology supports a composite control strategy that supports the coordinated operation of range extension and fast charging.

[0010] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, wherein: the decoupling of the brake pedal and the wheel-end oil pressure, and the use of high-pressure response to achieve coordinated control of energy recovery torque and hydraulic torque, are specifically implemented as follows: The electronic pedal and hydraulic system are separated. The brake pedal serves only as an input signal source. The electronic control unit independently controls the wheel-end braking force distribution, and multi-dimensional sensors are set up to collect pedal operation characteristics in real time. Construct a dual-circuit system with hydraulic braking and electric braking in parallel. The dual-circuit system includes a hydraulic braking circuit that establishes working pressure through a high-pressure pump station, uses a proportional valve group to achieve wheel-end pressure regulation, and an energy recovery circuit that realizes braking energy conversion through the motor's reverse drag characteristics; Optimal braking force distribution is achieved based on vehicle dynamic parameters. The braking force is calculated by integrating vehicle speed and motor speed signals. The energy recovery intensity is adjusted based on the battery status, achieving stepless coordination between hydraulic and electric braking forces. A high-speed solenoid valve group is used to control the hydraulic circuit, and the optimized control algorithm shortens the system response time to ensure instant braking response under all working conditions; Set up multiple verification mechanisms to ensure the reliability of control instructions, configure a mechanical backup system to ensure the availability of hydraulic brakes, and monitor the system operation status.

[0011] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, the method of dynamically adjusting the motor output torque based on the vehicle weight and slope algorithm and matching the AMT wiring harness specifications to reduce the failure rate is specifically implemented as follows: High-precision strain gauge load cells are installed in the front and rear suspension systems respectively; The suspension compression data at the front and rear axles are collected through sensors and converted into corresponding mass values using calibration curves; Add the front axle mass and the rear axle mass to calculate the total vehicle mass; A gyroscope and accelerometer are used to detect the vehicle body posture, and the road slope angle is calculated using trigonometric functions. Based on the collected vehicle mass and slope angle information, a dynamic model is used to estimate the required traction force and thus obtain the target motor output torque; Matching the calculated target motor output torque with the AMT control logic optimizes the gear shift strategy, thereby reducing wiring harness failure rates. An adaptive PID control algorithm is used to adjust the motor torque during the gear shifting process to ensure smooth gear shifting.

[0012] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, wherein: the speed direction is fed back by the current sensor to improve the braking energy recovery rate and increase the cruising range, the specific implementation method is as follows: High-precision Hall effect current sensors are connected to the three-phase windings of the motor respectively, and each phase winding is connected in series with a Hall effect current sensor to collect the instantaneous current value of each phase winding; The sensor outputs an analog voltage signal, which is converted by ADC and sent to the control unit for processing; By performing Clark transformation on the three-phase current signal, the current vector in the two-phase stationary coordinate system is obtained; By performing Park transformation on the current vector, the d-axis and q-axis currents in the rotating coordinate system are obtained; Determine the motor rotation direction by observing the polarity of the q-axis current; Based on the rotation direction and vehicle speed information, the energy recovery strategy algorithm is used to determine whether to activate the braking energy recovery function; The PID controller is used to adjust the target recovery power, and the inverter working state is adjusted according to the control output to make the motor enter the power generation mode. The control law expression is: ; in, To control the output, , , are proportional, integral, and differential coefficients respectively; By real-time monitoring of the battery SOC status, the maximum recovery power is dynamically limited to prevent the risk of overcharging.

[0013] As a preferred solution of the full-dimensional intelligent electro-hydraulic power control system of the present invention, the integrated AEB / ACC functional interface ensures extended safety through high-voltage interlocking and active discharge circuits, which is specifically implemented as follows: A dedicated CAN controller is configured in the integrated control module to define the standard communication protocol for the AEB and ACC systems, including the following key signals: Relative speed of the preceding vehicle, safety distance threshold, and preset braking request torque; Establish AEB / ACC function trigger condition judgment logic, and initiate the AEB emergency braking process when the vehicle is detected approaching an obstacle in front; When in cruise mode, it enters the ACC adaptive cruise control process; A high-voltage interlocking mechanism is used to monitor the high-voltage system status in real time, thereby preventing safety hazards caused by abnormal high-voltage operation; A comparator circuit is connected to the control unit to detect the HVIL loop status; Active discharge circuits are used to quickly relieve pressure on the high-voltage busbar, thereby ensuring the safety of personnel during system maintenance and emergency situations.

[0014] In a second aspect, the present invention provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: when the computer program is executed by the processor, any step of the full-dimensional intelligent electro-hydraulic power control system as described in the first aspect of the present invention is implemented.

[0015] In a third aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein: when the computer program is executed by a processor, any step of the full-dimensional intelligent electro-hydraulic power control system as described in the first aspect of the present invention is implemented.

[0016] The beneficial effects of the present invention are as follows: by using high-strength aluminum alloy materials and optimizing the shell structure design, the gearbox mass is reduced without reducing rigidity; combined with the precision-machined helical gear set and the dedicated lubrication oil system, the vibration and noise during the transmission process are effectively reduced; the dynamic load adaptation module adjusts the motor output torque based on the vehicle weight and slope algorithm, matches the AMT wiring harness specification to reduce the failure rate, and realizes dynamic adaptation of the motor output torque through real-time perception and modeling of the vehicle mass and slope; at the same time, the modular design of the wiring harness is compatible with the AMT specification, simplifies the wiring complexity, and reduces the failure probability of the wiring harness connector; by collecting the motor winding current signal and performing coordinate transformation, the motor rotation direction is accurately identified, and the power generation power is adjusted through PID control to make the energy recovery process more stable and controllable; and the recovery upper limit is dynamically adjusted in combination with the battery SOC status to prevent the risk of overcharging and ensure battery safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a flow chart of the full-dimensional intelligent electro-hydraulic power control system in Example 1.

[0019] Figure 2 This is the main flow chart of vehicle power control in Example 1.

[0020] Figure 3 This is a flow chart of motor braking energy recovery in Example 1.

[0021] Figure 4 This is the dynamic load adaptation control flow chart in Example 1.

[0022] Figure 5 This is a high-voltage safety control flow chart in Example 1.

[0023] Figure 6 This is the energy distribution flow chart of the all-in-one controller in Example 1. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0027] Example 1, reference Figures 1 to 6 , which is the first embodiment of the present invention, provides a full-dimensional intelligent electro-hydraulic power control system, including: High-torque motor module, lightweight transmission module, integrated control module, electro-hydraulic brake module, dynamic load adaptation module, energy recovery optimization module and ADAS expansion module; A high-torque motor module, designed to output 1150 Nm of torque using a skewed-slot winding design, is paired with a full-helical gearbox to reduce tooth contact stress; Furthermore, a skewed slot structure is used in the motor stator core to arrange the windings, with a skew angle of 15°±2°, which reduces the cogging torque fluctuation by more than 40%; The motor output shaft is connected to the gearbox input shaft through an involute spline, and the gear pair with a helical angle of 25° of the full-helical gearbox is used to even out the contact stress distribution on the tooth surface and reduce the peak stress by 30%. At the rated motor speed of 2000 rpm, a six-axis force sensor is used to monitor the radial and axial loads on the transmission input shaft to ensure that the gear contact scar area accounts for ≥85% under a torque of 1150 Nm. It should be noted that in this embodiment, the angle of the skew slot winding is controlled within the range of 15°±2°, which is the optimal range obtained through multiple rounds of simulation and actual measurement verification. This angle can effectively suppress the fluctuation of the tooth slot torque and will not complicate the winding process due to excessive inclination. The application of the six-dimensional force sensor further enhances the ability to perceive the stress state of the transmission system, and provides accurate data support for the subsequent gear contact scar area analysis, thereby ensuring stability and reliability under high torque output.

[0028] A lightweight transmission module uses an aluminum alloy housing and helical gear structure to reduce noise, and uses a current-type speed sensor to identify direction, reducing shift time to less than 0.6 seconds. Furthermore, the gearbox housing is cast from high-strength aluminum alloy, with a network of reinforcing ribs inside to reduce weight while ensuring structural rigidity. The housing surface is anodized to improve corrosion resistance, and local thickening is adopted in key stress-bearing areas. The gearbox gear set adopts a full helical gear design. By optimizing the tooth profile parameters and meshing characteristics, the vibration and noise during the transmission process are reduced. The gear material is carburized alloy steel, and the gear surface accuracy is ensured through precision grinding. A dedicated lubrication oil system is used to achieve smooth transmission. Equipped with a high-sensitivity current-type speed sensor, it can accurately identify the rotation direction and speed by detecting changes in shaft current. The high-sensitivity current-type speed sensor adopts a redundant design and built-in self-diagnosis function to monitor the system operating status in real time and feed the data back to the control unit; It adopts a two-axis pneumatic direct shift mechanism, equipped with a high-speed solenoid valve group and position sensor, and realizes gear switching through the shift logic algorithm; The cooling oil channel is integrated inside the shell, and forced lubrication and cooling are achieved through the oil pump; Adopting modular wiring harness design, sensor wiring harness, actuator wiring harness and power wiring harness are arranged in layers and fixed through dedicated wire ducts; It should be noted that the high-strength aluminum alloy shell used in this embodiment has optimized the distribution of reinforcement ribs and local thickening areas through finite element analysis, taking into account both structural strength and weight reduction requirements. The synergistic effect of the high-speed solenoid valve group and the shift logic algorithm enables the shift response time to be stably controlled within 0.6 seconds, which is significantly better than the traditional electronically controlled mechanical automatic transmission system. In addition, the integrated design of the cooling oil channel and the lubrication oil circuit not only improves the lubrication efficiency, but also reduces the maintenance frequency, thereby improving the overall durability of the system.

[0029] An integrated control module integrates the main motor drive, DC / DC conversion, air pump control, and PDU functions. Its modular design allows for compatibility with both range-extended and fast-charging topologies. Furthermore, a three-stage power conversion architecture is constructed, including a main motor drive unit using a three-phase full-bridge inverter topology, a DC / DC converter unit that realizes energy conversion between the high-voltage battery and the low-voltage system, and an auxiliary system power supply unit with integrated air pump and oil pump drive circuits; Set up multi-functional integrated interface, including: Main motor power interface, equipped with three-phase AC output terminals and motor temperature sensor interface; High-voltage DC interface, connected to the high-voltage busbar of the power battery pack; Low-voltage power interface, providing power supply for low-voltage electrical equipment in the vehicle; Auxiliary system control interface, connecting the air pump and oil pump actuators; Configure the topology switching logic, including: The range-extended mode topology realizes parallel power supply of the range extender and the power battery by controlling the switching of relays; Fast charging mode topology, which realizes direct connection between DC fast charging interface and battery pack through contactor control; Hybrid-mode topology, supporting a composite control strategy that works in tandem with range extension and fast charging; It should be noted that the design of the three-level power conversion architecture fully considers the compatibility and scalability of the vehicle's high-voltage system. The three-phase full-bridge inverter topology supports a wide voltage range input to adapt to different battery states; the DC / DC unit has bidirectional energy flow capabilities to meet the dynamic power supply requirements of the low-voltage system; the auxiliary power supply unit integrates the air pump and oil pump drive circuits, simplifying the peripheral wiring, and the topology switching logic is doubly guaranteed by hardware relays and software strategies to achieve safe and seamless switching between extended-range, fast charging and hybrid modes.

[0030] The electro-hydraulic brake module decouples the brake pedal from wheel-end oil pressure, using high-pressure response to achieve coordinated control of energy recovery torque and hydraulic torque; Furthermore, the electronic pedal and hydraulic system are separated. The brake pedal only serves as an input signal source. The electronic control unit independently controls the wheel-end braking force distribution, and a multi-dimensional sensor is set up to collect pedal operation characteristics in real time. Construct a dual-circuit system with hydraulic braking and electric braking in parallel. The dual-circuit system includes a hydraulic braking circuit that establishes working pressure through a high-pressure pump station, uses a proportional valve group to achieve wheel-end pressure regulation, and an energy recovery circuit that realizes braking energy conversion through the motor's reverse drag characteristics; Optimal braking force distribution is achieved based on vehicle dynamic parameters. The braking force is calculated by integrating vehicle speed and motor speed signals. The energy recovery intensity is adjusted based on the battery status, achieving stepless coordination between hydraulic and electric braking forces. A high-speed solenoid valve group is used to control the hydraulic circuit, and the optimized control algorithm shortens the system response time to ensure instant braking response under all working conditions; Set up multiple verification mechanisms to ensure the reliability of control commands, configure a mechanical backup system to ensure the availability of hydraulic brakes, and monitor the system operation status; It should be noted that the electronic pedal and hydraulic system's separate architecture breaks away from the traditional mechanical linkage of braking systems, making braking force distribution more flexible and controllable. The dual-circuit system operates in parallel with hydraulic and electric braking, and, combined with a high-speed solenoid valve assembly and optimized control algorithms, significantly shortens braking response time. Multiple verification mechanisms, including CAN signal verification, sensor redundancy comparison, and self-test procedures, ensure accurate execution of control commands. A mechanical backup system is also retained to address extreme failure scenarios, fully guaranteeing driving safety.

[0031] Dynamic load adaptation module, used to dynamically adjust motor output torque based on vehicle weight and slope algorithm, matching AMT wiring harness specifications to reduce failure rate; Furthermore, high-precision strain gauge load cells are installed in the front and rear suspension systems; The suspension compression data at the front and rear axles are collected through sensors and converted into corresponding mass values using calibration curves; Add the front axle mass and the rear axle mass to calculate the total vehicle mass; A gyroscope and accelerometer are used to detect the vehicle body posture, and the road slope angle is calculated using trigonometric functions. Based on the collected vehicle mass and slope angle information, a dynamic model is used to estimate the required traction force and thus obtain the target motor output torque; Matching the calculated target motor output torque with the AMT control logic optimizes the gear shift strategy, thereby reducing wiring harness failure rates. Adaptive PID control algorithm is used to adjust the motor torque during the gear shifting process to ensure smooth gear shifting; It should be noted that the data fusion and calibration process of the front and rear suspension weighing sensors requires multiple sampling when the vehicle is stationary to improve accuracy. When the gyroscope and accelerometer are combined to detect the vehicle body posture, the Kalman filter algorithm is used to process the noise and improve the accuracy of the slope angle calculation. The PID control algorithm dynamically adjusts the output instructions based on the real-time feedback of the motor speed and target torque deviation during the gear shifting process to achieve a smooth transition during the gear shifting process, avoid damage to the AMT wiring harness caused by impact loads, and thus reduce the system failure rate.

[0032] Energy recovery optimization module, which uses current sensors to feedback speed direction, improves braking energy recovery rate, and increases driving range; Furthermore, high-precision Hall effect current sensors are connected to the three-phase windings of the motor respectively, and each phase winding is connected in series with a Hall effect current sensor to collect the instantaneous current value in each phase winding; The sensor outputs an analog voltage signal, which is converted by ADC and sent to the control unit for processing; By performing Clark transformation on the three-phase current signal, the current vector in the two-phase stationary coordinate system is obtained; By performing Park transformation on the current vector, the d-axis and q-axis currents in the rotating coordinate system are obtained; Determine the motor rotation direction by observing the polarity of the q-axis current; Based on the rotation direction and vehicle speed information, the energy recovery strategy algorithm is used to determine whether to activate the braking energy recovery function; The PID controller is used to adjust the target recovery power, and the inverter working state is adjusted according to the control output to make the motor enter the power generation mode. The control law expression is: ; in, To control the output, , , are proportional, integral, and differential coefficients respectively; By monitoring the battery SOC status in real time, the maximum recovery power is dynamically limited to prevent overcharging risks; It should be noted that the selection of Hall current sensors must take into account both high-frequency response characteristics and anti-interference capabilities to ensure the accuracy of the Clark / Park transformation results. The judgment of the q-axis current polarity, as a key criterion for starting energy recovery, must be cross-validated with the vehicle speed signal to prevent false triggering. The PID controller parameters are adjusted offline according to different vehicle platforms and are continuously optimized through an online learning mechanism during actual operation to adapt to various driving habits and road conditions. The SOC dynamic limitation strategy effectively prevents the risk of battery overcharging during the energy recovery process.

[0033] ADAS expansion module, used to integrate AEB / ACC function interfaces, and ensure extended safety through high-voltage interlock and active discharge circuits; Furthermore, a dedicated CAN controller is configured in the integrated control module to define the standard communication protocol for the AEB and ACC systems, including the following key signals: Relative speed of the preceding vehicle, safety distance threshold, and preset braking request torque; Establish AEB / ACC function trigger condition judgment logic, and initiate the AEB emergency braking process when the vehicle is detected approaching an obstacle in front; When in cruise mode, it enters the ACC adaptive cruise control process; A high-voltage interlocking mechanism is used to monitor the high-voltage system status in real time, thereby preventing safety hazards caused by abnormal high-voltage operation; A comparator circuit is connected to the control unit to detect the HVIL loop status; Active discharge circuit is used to quickly relieve pressure on the high-voltage busbar, thus ensuring the safety of personnel in system maintenance and emergency situations; It should be noted that the communication protocol of the AEB / ACC functional interface is extended and defined based on the ISO 11992 standard to ensure compatibility and interoperability with other vehicle systems. The status of the high-voltage interlock (HVIL) circuit is monitored in real time by the comparator circuit. Once disconnected, the high-voltage cut-off protection is triggered to prevent safety hazards caused by live operation. The active discharge circuit starts immediately after receiving an emergency signal or entering the maintenance mode, and controls the discharge resistor through the MOSFET switch to quickly discharge pressure, ensuring the safety of personnel operations and meeting the functional safety level requirements.

[0034] This embodiment also provides a computer device suitable for the case of a full-dimensional intelligent electro-hydraulic power control system, including: a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute computer-executable instructions to realize the full-dimensional intelligent electro-hydraulic power control system proposed in the above embodiment.

[0035] The computer device may be a terminal, comprising a processor, memory, a communication interface, a display, and an input device connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores an operating system and computer programs. The internal memory provides an environment for the operating system and computer programs stored in the non-volatile storage media. The communication interface of the computer device is used to communicate with external terminals via wired or wireless communication. Wireless communication may be achieved via Wi-Fi, a carrier network, NFC (near-field communication), or other technologies. The display of the computer device may be a liquid crystal display or an electronic ink display. The input device may be a touchscreen overlay on the display, buttons, a trackball, or a touchpad on the computer device housing, or an external keyboard, touchpad, or mouse.

[0036] This embodiment also provides a storage medium having a computer program stored thereon, which, when executed by a processor, implements the full-dimensional intelligent electro-hydraulic power control system proposed in the above embodiment; the storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0037] In summary, the present invention achieves a reduction in gearbox mass without reducing rigidity by using high-strength aluminum alloy materials and optimizing the shell structure design. Combined with the precision-machined helical gear set and the dedicated lubrication oil system, the vibration and noise during the transmission process are effectively reduced. The dynamic load adaptation module adjusts the motor output torque based on the vehicle weight and slope algorithm, and matches the AMT wiring harness specifications to reduce the failure rate. Through real-time perception and modeling of the vehicle mass and slope, the dynamic adaptation of the motor output torque is achieved. At the same time, the modular design of the wiring harness is compatible with the AMT specification, which simplifies the wiring complexity and reduces the failure probability of the wiring harness connector. By collecting the motor winding current signal and performing coordinate transformation, the motor rotation direction is accurately identified, and the power generation power is adjusted through PID control to make the energy recovery process more stable and controllable. The recovery upper limit is dynamically adjusted in combination with the battery SOC status to prevent the risk of overcharging and ensure battery safety.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A full-dimensional intelligent electro-hydraulic power control system, characterized by: include: High-torque motor module, lightweight transmission module, integrated control module, electro-hydraulic brake module, dynamic load adaptation module, energy recovery optimization module and ADAS expansion module; The high-torque motor module is designed to output 1150 Nm of torque using a skewed-slot winding design and is matched with a full-helical gearbox to reduce tooth surface contact stress; The lightweight transmission module is designed to achieve noise reduction through an aluminum alloy housing and helical gear structure, and uses a current-type speed sensor to identify direction, compressing the shift time to less than 0.6 seconds. The integrated control module is used to integrate the main motor drive, DC / DC conversion, air pump control and PDU functions, and is compatible with extended-range and fast-charging topologies through modular design; The electro-hydraulic brake module is used to decouple the brake pedal from the wheel-end oil pressure, and adopts high-pressure response to achieve coordinated control of energy recovery torque and hydraulic torque; The dynamic load adaptation module is used to dynamically adjust the motor output torque based on the vehicle weight and slope algorithm to match the AMT wiring harness specifications to reduce the failure rate; The energy recovery optimization module is used to feedback the speed direction through the current sensor to improve the braking energy recovery rate and increase the cruising range; The ADAS extension module is used to integrate AEB / ACC functional interfaces and ensure extended safety through high-voltage interlocking and active discharge circuits.

2. The full-dimensional intelligent electro-hydraulic power control system according to claim 1, characterized in that: The skewed slot winding design outputs 1150Nm of torque and is matched with a full helical gearbox to reduce tooth surface contact stress. The specific implementation method is as follows: The winding is arranged in a skewed slot structure in the motor stator core, with a skew angle of 15°±2°, which reduces the cogging torque fluctuation by more than 40%; The motor output shaft is connected to the gearbox input shaft through an involute spline, and the gear pair with a helical angle of 25° of the full-helical gearbox is used to even out the contact stress distribution on the tooth surface and reduce the peak stress by 30%. Under the condition of the motor's rated speed of 2000rpm, the radial / axial load of the gearbox input shaft is monitored by a six-dimensional force sensor to ensure that the gear contact scar area accounts for ≥85% under a torque of 1150Nm.

3. The full-dimensional intelligent electro-hydraulic power control system according to claim 2, characterized in that: The aluminum alloy housing and helical gear structure are used to reduce noise, and a current-type speed sensor is used to identify the direction, which reduces the shift time to less than 0.6s. The specific implementation method is as follows: The gearbox housing is cast from high-strength aluminum alloy, with a network of reinforcing ribs inside to reduce weight while ensuring structural rigidity. The housing surface is anodized to improve corrosion resistance, and locally thickened design is used in key stress-bearing areas. The gearbox gear set adopts a full helical tooth design, which reduces vibration and noise during transmission by optimizing tooth profile parameters and meshing characteristics. The gear is made of carburized alloy steel and is precision ground to ensure tooth surface accuracy. A dedicated lubrication oil system is used to achieve smooth transmission. Equipped with a high-sensitivity current-type speed sensor, which accurately identifies the rotation direction and speed by detecting changes in shaft current. The high-sensitivity current-type speed sensor adopts a redundant design and built-in self-diagnosis function, which monitors the system operation status in real time and feeds data back to the control unit; It adopts a two-axis pneumatic direct shift mechanism, equipped with a high-speed solenoid valve group and position sensor, and realizes gear switching through the shift logic algorithm; A cooling oil channel is integrated inside the housing to achieve forced lubrication and cooling through an oil pump; A modular wiring harness design is adopted, with the sensor harness, actuator harness and power harness arranged in layers and fixed through dedicated wire ducts.

4. The full-dimensional intelligent electro-hydraulic power control system according to claim 3, characterized in that: The integrated main motor drive, DC / DC conversion, air pump control and PDU functions are compatible with extended-range and fast-charging topologies through modular design. The specific implementation method is as follows: A three-stage power conversion architecture is constructed, including a main motor drive unit using a three-phase full-bridge inverter topology, a DC / DC converter unit that converts energy between the high-voltage battery and the low-voltage system, and an auxiliary system power supply unit with integrated air and oil pump drive circuits. Set up multi-functional integrated interface, including: Main motor power interface, equipped with three-phase AC output terminals and motor temperature sensor interface; High-voltage DC interface, connected to the high-voltage busbar of the power battery pack; Low-voltage power interface, providing power supply for low-voltage electrical equipment in the vehicle; Auxiliary system control interface, connecting the air pump and oil pump actuators; Configure the topology switching logic, including: The range-extended mode topology realizes parallel power supply of the range extender and the power battery by controlling the switching of relays; Fast charging mode topology, which realizes direct connection between DC fast charging interface and battery pack through contactor control; Hybrid mode topology supports a composite control strategy that supports the coordinated operation of range extension and fast charging.

5. The full-dimensional intelligent electro-hydraulic power control system according to claim 4, characterized in that: The decoupling of the brake pedal and the wheel-end oil pressure uses a high-pressure response to achieve coordinated regulation of the energy recovery torque and the hydraulic torque. The specific implementation method is as follows: The electronic pedal and hydraulic system are separated. The brake pedal serves only as an input signal source. The electronic control unit independently controls the wheel-end braking force distribution, and multi-dimensional sensors are set up to collect pedal operation characteristics in real time. Construct a dual-circuit system with hydraulic braking and electric braking in parallel. The dual-circuit system includes a hydraulic braking circuit that establishes working pressure through a high-pressure pump station, uses a proportional valve group to achieve wheel-end pressure regulation, and an energy recovery circuit that realizes braking energy conversion through the motor's reverse drag characteristics; Optimal braking force distribution is achieved based on vehicle dynamic parameters. The braking force is calculated by integrating vehicle speed and motor speed signals. The energy recovery intensity is adjusted based on the battery status, achieving stepless coordination between hydraulic and electric braking forces. A high-speed solenoid valve group is used to control the hydraulic circuit, and the optimized control algorithm shortens the system response time to ensure instant braking response under all working conditions; Set up multiple verification mechanisms to ensure the reliability of control instructions, configure a mechanical backup system to ensure the availability of hydraulic brakes, and monitor the system operation status.

6. The full-dimensional intelligent electro-hydraulic power control system according to claim 5, characterized in that: The algorithm dynamically adjusts the motor output torque based on vehicle weight and slope, matches the AMT wiring harness specification to reduce the failure rate, and is specifically implemented as follows: High-precision strain gauge load cells are installed in the front and rear suspension systems respectively; The suspension compression data at the front and rear axles are collected through sensors and converted into corresponding mass values using calibration curves; Add the front axle mass and the rear axle mass to calculate the total vehicle mass; A gyroscope and accelerometer are used to detect the vehicle body posture, and the road slope angle is calculated using trigonometric functions. Based on the collected vehicle mass and slope angle information, a dynamic model is used to estimate the required traction force and thus obtain the target motor output torque; Matching the calculated target motor output torque with the AMT control logic optimizes the gear shift strategy, thereby reducing wiring harness failure rates. An adaptive PID control algorithm is used to adjust the motor torque during the gear shifting process to ensure smooth gear shifting.

7. The full-dimensional intelligent electro-hydraulic power control system according to claim 6, characterized in that: The current sensor is used to feedback the speed direction, thereby improving the braking energy recovery rate and increasing the cruising range. The specific implementation method is as follows: High-precision Hall effect current sensors are connected to the three-phase windings of the motor respectively, and each phase winding is connected in series with a Hall effect current sensor to collect the instantaneous current value of each phase winding; The sensor outputs an analog voltage signal, which is converted by ADC and sent to the control unit for processing; By performing Clark transformation on the three-phase current signal, the current vector in the two-phase stationary coordinate system is obtained; By performing Park transformation on the current vector, the d-axis and q-axis currents in the rotating coordinate system are obtained; Determine the motor rotation direction by observing the polarity of the q-axis current; Based on the rotation direction and vehicle speed information, the energy recovery strategy algorithm is used to determine whether to activate the braking energy recovery function; The PID controller is used to adjust the target recovery power, and the inverter working state is adjusted according to the control output to make the motor enter the power generation mode. The control law expression is: ； in, To control the output, , , are proportional, integral, and differential coefficients respectively; By real-time monitoring of the battery SOC status, the maximum recovery power is dynamically limited to prevent the risk of overcharging.

8. The full-dimensional intelligent electro-hydraulic power control system according to claim 7, characterized in that: The integrated AEB / ACC functional interface ensures extended safety through high-voltage interlocking and active discharge circuits. The specific implementation method is as follows: A dedicated CAN controller is configured in the integrated control module to define the standard communication protocol for the AEB and ACC systems, including the following key signals: Relative speed of the preceding vehicle, safety distance threshold, and preset braking request torque; Establish AEB / ACC function trigger condition judgment logic, and initiate the AEB emergency braking process when the vehicle is detected approaching an obstacle in front; When in cruise mode, it enters the ACC adaptive cruise control process; A high-voltage interlocking mechanism is used to monitor the high-voltage system status in real time, thereby preventing safety hazards caused by abnormal high-voltage operation; A comparator circuit is connected to the control unit to detect the HVIL loop status; Active discharge circuits are used to quickly relieve pressure on the high-voltage busbar, thereby ensuring the safety of personnel during system maintenance and emergency situations.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the full-dimensional intelligent electro-hydraulic power control system described in any one of claims 1 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the full-dimensional intelligent electro-hydraulic power control system according to any one of claims 1 to 8 are implemented.

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