Vehicle Torque Control Using Steering-State Detection in Turns
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Solution Overview
Problem
Current vehicle control technologies lack an accurate method to detect a vehicle's driving status, which hinders the ability to adjust power output effectively and maintain driving stability, especially during turns.
Innovation Solution
A vehicle torque control method that determines the current driving state of a vehicle based on the steering wheel angle and vehicle steering speed parameters, and adjusts the output torques of the front and rear drivers accordingly to improve stability and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If output torque of each wheel is not adjusted appropriately, then vehicle driving stability deteriorates with obvious jitter and shaking during turns, but adjusting torque requires accurate detection of driving status which is currently unavailable
Solution Approach 1:
The patent implements feedback by continuously monitoring steering wheel angle and steering speed parameters, processing this information to determine driving status (straight driving, turning left, turning right), and using this feedback to dynamically adjust motor torque output. This closed-loop control system resolves the contradiction by creating the necessary information feedback mechanism that was previously unavailable.
Solution Approach 2:
The patent applies preliminary action by pre-defining torque adjustment strategies for different driving statuses. Before actual torque adjustment is needed, the system has already established the correspondence between driving status (determined from steering parameters) and appropriate torque adjustments, enabling rapid response without complex real-time calculations.
2Adaptability or versatility
If torque adjustment is implemented without accurate driving status detection, then power output cannot be appropriately adjusted, but implementing detection increases system complexity
Solution Approach 1:
The patent makes existing steering system components (steering wheel angle sensor, steering speed sensor) serve multiple functions: they not only control steering but also provide the basis for determining driving status for torque adjustment. This multi-functionality approach increases adaptability without adding dedicated detection hardware, thus avoiding increased system complexity.
Solution Approach 2:
The system uses its own existing sensors and control parameters to determine driving status and guide torque adjustment, rather than requiring external or additional detection systems. The steering control system itself provides the information needed for torque control, making the system self-sufficient and avoiding additional complexity.
Data Source
AI summary
A vehicle torque control method includes: obtaining a steering wheel angle and a vehicle steering speed parameter; determining a current driving state of a vehicle based on the steering wheel angle and the vehicle steering speed parameter, and controlling output torques of a front driver and a rear driver of the vehicle based on the current driving state of the vehicle.