TORQUE PRIORITY DETERMINATION METHOD, TORQUE CONTROL SERVICE SYSTEM AND VEHICLE

Claims

1. A method for determining torque priorities, characterized in that it includes the following steps: obtain the current required torque of the vehicle in the driving state, compare it with the preset required torque scenarios and activate one or more required torque scenarios; based on the preset priority, the preset required torque and the preset torque prioritization operation ratio, for each required torque scenario, a final prioritization result is calculated and output, wherein for required torque scenarios with the same priority, the torque prioritization operation ratio is an operational ratio between this required torque scenario and other required torque scenarios with the same priority level, and for required torque scenarios with different priorities, the torque prioritization operation ratio is an operational ratio between the result of operations at one priority level and the result of operations at a lower priority level, wherein when only one required torque scenario is activated,the result of determining the priorities is output directly when two or more scenarios of the required torque are activated, firstly, the ratios of the operations of determining the priorities of the torque are performed for different priorities sequentially from high to low, wherein for different scenarios of the required torque with the same priority, the result of the operations at the same priority level is calculated through the ratio of the operations of determining the priorities of the torque between the same priorities, the result of the operations at the same priority level is substituted into the calculation by the ratio of the operations of determining the priorities of the torque between different priorities, the final result of determining the priorities is calculated and output; control the vehicle to appropriately control the torque in accordance with the result of the prioritization.

2. The method according to claim 1, characterized in that the preset priority levels are represented by natural numbers, wherein a higher numerical value indicates a higher priority level, when the numerical value of the priority of the required torque scenario is 0, this indicates the lowest priority of this scenario, and the ratio of torque priority determination operations corresponding to this scenario is not involved in the calculations.

3. The method according to claim 2, characterized in that the preset torque priority determination operation relationships include: no operation, summation (+), subtraction (-), minimum value selection (MIN) and maximum value selection (MAX), wherein "no operation" means that there is no longer an operational relationship between the result of the operations at one priority level for the required torque scenario and the result of the operations at one priority level for the required torque scenario with a lower priority, "summation (+)" means a summation operation between different required torque scenarios or different priorities, "subtraction (-)" means a subtraction operation between different required torque scenarios or different priorities, "minimum value selection (MIN)" means a minimum value selection operation between different required torque scenarios or different priorities,"maximum value selection (MAX)" means an operation of selecting the maximum value between different required torque scenarios or different priorities, wherein the ratios of torque priority determination operations for different required torque scenarios belonging to the same priority level are set to "no operation" and / or "addition (+)", "subtraction (-)", "minimum value selection (MIN)", and "maximum value selection (MAX)"., 4. The method according to paragraphs 1-3, characterized in that the preset scenarios of the required torque are derived from the required torque from the accelerator pedal, the required torque for the creeping mode, the required torque for the coasting mode, the required torque during regenerative braking, the required torque for the automatic control system, the required torque for the intelligent steering system, the required torque for hill start assist, the required torque for parking assist, the maximum required torque set by the driver, the maximum required torque limited by the driving speed, and the required torque limited by the engine and the battery.

5. The method according to paragraphs 1-4, characterized in that the preset required torque includes a torque distribution coefficient between the front and rear axles and a total required torque on the wheels.

6. The method according to paragraphs 1-5, characterized in that the result of determining priorities includes the value of the output required torque, the name of the scenario with the highest priority level, and the priority level.

7. A torque control service system, characterized in that it includes a scenario setting module, a torque control module, and an executive module that sequentially transmit signals, wherein several scenarios of the required torque are set in the scenario setting module and the name of the scenario, the priority level, and the required torque corresponding to each scenario of the required torque are calculated by the torque control module using the method according to paragraphs 1-6, obtaining the result of the priority determination, which is output to the executive module for execution.

8. The system according to claim 7, characterized in that the actuator module includes an engine controller, an electric motor controller, and a hydraulic brake system controller.

9. The system according to claim 7 or 8, characterized in that the torque control module also includes an interface for requesting control of the total required torque on the wheels and an interface for requesting control of the torque on the wheels of the front and rear axles.

10. A vehicle characterized in that it includes a torque control service system according to paragraphs 7-9.