Motorcycle Test Stand Steering Force Simulation for Realistic Banking
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Solution Overview
Problem
Existing vehicle test stands fail to realistically simulate the dynamic interactions between a driver and a banking-capable vehicle, particularly motorcycles, due to the lack of consideration for the driver's behavior and steering techniques, which affect lateral forces and stability during maneuvers.
Innovation Solution
A vehicle test stand equipped with a steering force module, steering angle detection unit, and driver position detection unit, which calculates and applies a steering counter force to simulate realistic driving conditions, including the influence of different steering techniques and driver positions, using a simulation unit and actuators to apply forces and torques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical actuators are used to change the vehicle's banking position, then the simulation of driving conditions can be improved, but the device complexity and cost increase significantly
Solution Approach 1:
The patent extracts the complex mechanical actuator system for changing banking position and replaces it with a simplified approach: the vehicle remains in a fixed vertical position while force modules apply lateral forces to simulate banking effects. This removes the need for complex mechanical positioning actuators while maintaining simulation fidelity through force application alone.
Solution Approach 2:
The patent replaces the mechanical system of actuators that physically tilt the vehicle with a force-based system. Force modules apply lateral forces to the vehicle to simulate the effects of banking without actually changing the vehicle's physical orientation, substituting mechanical positioning with applied forces.
2Reliability
If the driver's behavior and position are taken into consideration, then the simulation realism is improved, but the measurement and detection requirements increase
Solution Approach 1:
The patent introduces force modules as intermediaries between the driver and the vehicle's steering system. These force modules measure and apply forces that indirectly capture the driver's behavior and position effects, avoiding the need for direct and complex detection of driver posture and intentions while still achieving realistic simulation.
Solution Approach 2:
The patent replaces direct mechanical measurement of driver position and behavior with force-based sensing. Instead of using complex sensors to detect driver posture, the system uses force modules to measure the forces the driver applies, which indirectly reveal the driver's behavior and position effects on the vehicle.
3Reliability
If comprehensive force and torque application systems are implemented, then the driving condition simulation is improved, but the device complexity increases
Solution Approach 1:
The patent implements force modules that serve multiple functions: they apply lateral forces to simulate banking, apply longitudinal forces to simulate acceleration/deceleration, and measure driver inputs. This multi-functional approach achieves comprehensive driving condition simulation without requiring separate dedicated systems for each function, reducing overall complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a more realistic simulation of driving conditions, allowing for the detection and remediation of stability issues and testing of various driver assistance systems in a safe environment, while minimizing the need for mechanical actuators to change the vehicle's banking position.
Implementation Method 1
a steering force module 2, to which a steering system 7 of the banking-capable complete vehicle 5 can be connected, is provided on the vehicle test stand 1... the steering force module 2 is designed to apply the steering counter force QA to the steering system 7
Implementation Method 2
a loading unit 10 is provided for driving and/or loading the banking-capable complete vehicle 5, in particular in order to apply a torque D to a component of a drive train 40 of the banking-capable complete vehicle 5
Implementation Method 3
a steering angle detection unit 20 is provided for detecting the steering angle αM of the steering system 7 during the test run... a detection unit 4 is provided for detecting a position αL of a driver 8 relative to the banking-capable complete vehicle 5 during the test run
Data Source
AI summary
The invention relates to a vehicle test stand for carrying out a test run with a complete vehicle capable of banking, characterized in that a steering force module is provided on the vehicle test stand, which can be connected to a steering system of the banking-capable complete vehicle, a steering angle detection unit is provided for determining a steering angle (αM) of the steering system during the test run, a detection unit is provided for detecting a position (αL) of a driver relative to the banking-capable complete vehicle during the test run, a simulation unit is provided, which is designed to use the steering angle (αM) and the position (αL) of the driver in a simulation model in order to calculate a steering counter force (QA) acting on the steering system and counteracting a steering force (QL) exerted by the driver, and the steering force module is designed to apply the steering counter force (QA) to the steering system.