Vehicle Torque Control System for Dynamic Lateral Dynamics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle control systems lack user customization options to alter vehicle dynamics, limiting their ability to enhance lateral dynamics or simulate challenging conditions, such as asymmetrical behavior, which can be beneficial for training or performance improvements.
Innovation Solution
A control system for vehicles with two drive wheels, allowing independent motor torque control through sensors for steering angle, throttle level, yaw rate, and speed, enabling users to adjust parameters via a user-interface device to customize the vehicle's dynamics, including differential torque distribution between motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known control systems are used for vehicle dynamics, then vehicle security and performance are improved, but user ability to customize vehicle dynamics is limited
Solution Approach 1:
The control system allows dynamic reconfiguration of vehicle dynamics parameters through a user interface, enabling users to modify stability control settings, differential torque distribution, and other dynamic characteristics in real-time based on training needs or performance goals
Solution Approach 2:
The system enables users to change multiple parameters including stability control thresholds, torque distribution ratios, and dynamic response characteristics through a configurable interface, allowing radical modification of vehicle behavior beyond fixed manufacturer settings
2Reliability
If stability control systems are fixed, then vehicle security is maintained, but ability to worsen lateral dynamics for training purposes is prevented
Solution Approach 1:
The stability control system transitions from a fixed configuration to a dynamically adjustable system where users can modify lateral dynamics characteristics through the user interface, enabling both security-oriented and training-oriented configurations
Solution Approach 2:
The system allows users to create asymmetric torque distribution between left and right drive wheels independently, enabling customization of lateral dynamics behavior for training scenarios while maintaining symmetric operation for normal security-critical situations
3Adaptability or versatility
If independent motor control is implemented, then lateral dynamics can be enhanced, but system complexity increases
Solution Approach 1:
The control system is segmented into independent modules: a drive module receiving steering and throttle inputs, a torque calculation module computing differential torque based on steering angle, and a motor control module distributing torque to individual motors, allowing manageable complexity through functional decomposition
Solution Approach 2:
A microprocessor-based control unit acts as an intermediary between user inputs (steering angle, throttle position) and motor actuators, coordinating the complex interactions and calculations required for independent motor control while shielding users from the underlying system complexity
Data Source
AI summary
A system for the control of the machine torque of a vehicle (1) includes a first drive wheel (2′) associated to a first motor (3′) and a second drive wheel (2″) associated to a second motor (3″), a steering member (4) and an accelerator member (6). The control system includes a user-interface device (13); means (7) for detecting the steering angle (δ) associated to a steering member (4); means (8) for detecting the throttle level (θ) of the accelerator member (6); means (9) for detecting the yaw rate of the vehicle ({dot over (ψ)}); means (10) for detecting the speed of the vehicle (v); and a drive module (11).