Vehicle Torque Control Under Turning and Safety Constraints
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Solution Overview
Problem
Existing vehicle control systems fail to optimally manage torque in turning scenarios, leading to reduced stability and comfort, and do not adequately consider active safety interventions or gear status, resulting in suboptimal driving experiences.
Innovation Solution
A torque control method that determines vehicle status and required longitudinal acceleration, adjusts torque based on corrected values considering constraints and active safety functions, and optimizes torque control strategies using sensors and processors to enhance precision and adaptability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If torque control is simplified without considering active safety functions and gear status, then device complexity is reduced, but vehicle stability and driving experience deteriorate
Solution Approach 1:
The torque control method is segmented into multiple independent judgment dimensions: active safety function status, gear status, vehicle speed, lateral acceleration, and longitudinal acceleration. Each dimension is evaluated separately through specific judgment conditions, allowing the system to manage complexity through modular decision-making rather than a monolithic control algorithm.
Solution Approach 2:
The system performs preliminary judgments on active safety function status and gear status before executing torque control. By pre-evaluating these conditions and determining whether torque control should be enabled or disabled, the system prepares the control state in advance, ensuring stability decisions are made based on pre-processed information rather than reactive adjustments.
2Stability of the object's composition
If torque control considers multiple factors including active safety functions and gear status, then vehicle stability and driving experience are improved, but device complexity increases
Solution Approach 1:
The system changes the parameter of control activation based on the evaluation of multiple factors. When active safety functions are not enabled, gear status is appropriate, and vehicle dynamics (speed, lateral acceleration, longitudinal acceleration) meet specified conditions, the torque control parameter is activated. This parameter-based control approach allows the system to incorporate multiple factors without requiring complex continuous control algorithms.
Solution Approach 2:
The system continuously monitors and evaluates the status of active safety functions, gear status, vehicle speed, lateral acceleration, and longitudinal acceleration. This feedback mechanism ensures that torque control is adjusted based on real-time vehicle conditions, maintaining stability while adapting to changing operational contexts through systematic re-evaluation of all control factors.
3Ease of operation
If torque control is adjusted frequently based on real-time data, then driving experience and comfort are improved, but energy consumption increases
Solution Approach 1:
The system applies preliminary anti-action by disabling torque control when active safety functions are enabled or when gear status indicates inappropriate conditions. This preventive approach avoids unnecessary torque adjustments in situations where they would be counterproductive or energy-inefficient, while still maintaining the capability for frequent adjustments when conditions are favorable for improving driving experience.
Data Source
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AI summary
A torque control method is provided, including: obtaining status information of a vehicle; determining a vehicle status and a required value of longitudinal acceleration based on the status information of the vehicle; determining a corrected value of the longitudinal acceleration based on the status information of the vehicle, the required value of the longitudinal acceleration, and a constraint corresponding to the vehicle status; and controlling torque of the vehicle based on the corrected value of the longitudinal acceleration. A torque control apparatus, a transportation means, a chip system, a computer-readable storage medium, and a computer program product are also disclosed.