Remote Driving Haptic Feedback Tuned to Vehicle Parameters
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Solution Overview
Problem
Operators of remote driving systems face difficulties in achieving a consistent operational feel when controlling vehicles with different characteristics, such as weight, wheelbase, tread, number of occupants, and load, due to varying vehicle parameters, leading to suboptimal control and potential excessive operation requests.
Innovation Solution
A remote driving device and system that adjust the operation reaction force based on received vehicle parameters, including weight, wheelbase, tread, number of occupants, and load weight, to mimic the feel of driving a vehicle, using a processor-controlled reaction force unit in the remote operation device to apply appropriate resistance to the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same operation reaction force is applied to the remote operation device regardless of vehicle parameters, then the device complexity is reduced, but the operational feel consistency deteriorates
Solution Approach 1:
The reaction force unit dynamically adjusts the operation reaction force based on received vehicle parameters (weight, wheelbase, tread, number of occupants, load weight). The processor continuously monitors these parameters and modifies the reaction force magnitude in real-time to match the actual vehicle characteristics, making the remote operation feel consistent across different vehicle configurations.
Solution Approach 2:
The system changes the reaction force parameter based on vehicle parameters. When the vehicle weight, wheelbase, tread, number of occupants, or load weight changes, the processor calculates the appropriate reaction force magnitude and adjusts the reaction force unit accordingly, ensuring the operational feel corresponds to the actual vehicle state.
2Ease of operation
If the operation reaction force is adjusted according to vehicle parameters, then the operational feel consistency is improved, but the device complexity increases
Solution Approach 1:
The system implements feedback by receiving vehicle parameters from the vehicle and using this information to adjust the reaction force. The processor continuously monitors vehicle parameters (weight, wheelbase, tread, number of occupants, load weight) and feeds this information back to the reaction force unit, which adjusts the operation reaction force accordingly to maintain consistent operational feel.
Solution Approach 2:
The reaction force unit serves multiple functions: it provides basic steering resistance, adapts to different vehicle weights, compensates for wheelbase differences, accounts for tread variations, and adjusts for changes in occupants and load. This multi-functionality allows a single device to handle diverse vehicle configurations without requiring separate control systems for each parameter.
3Measurement precision
If greater operation reaction force is generated for heavier vehicles, then the operational feel accuracy is improved, but the force magnitude control difficulty increases
Solution Approach 1:
The processor changes the reaction force parameter based on the vehicle weight parameter. When a heavier vehicle is detected, the system increases the operation reaction force magnitude proportionally. This parameter change approach simplifies the control difficulty by establishing a direct relationship between vehicle weight and required reaction force, making the control logic straightforward despite the varying force magnitudes.
Data Source
AI summary
A remote driving device configured to remotely operate a vehicle includes a remote operation device, a reaction force unit, a receiver, and a processor. The remote operation device is operated by an operator in order to remotely operate the vehicle. The reaction force unit is configured to generate an operation reaction force to be applied to the remote operation device. The receiver is configured to receive a parameter affecting vehicle characteristics of the vehicle from the vehicle. The processor is configured to control the reaction force unit so as to generate a magnitude of the operation reaction force according to the received parameter.