Motor Vehicle Actuator Threshold Adaptation for Multi-Model Use
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Solution Overview
Problem
Existing actuator technologies for motor vehicles require adaptation to different vehicle series, leading to high development, manufacturing, and storage costs due to the need for specific threshold values, limiting flexibility and increasing costs.
Innovation Solution
The actuator is designed to be self-learning, automatically adapting its threshold values based on the setpoint received, allowing it to operate within a dynamically adjusted permissible range, eliminating the need for vehicle-specific adaptations by setting the threshold value equal to the setpoint when it exceeds or falls below the initial threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the actuator is adapted to different motor vehicles by storing specific threshold values, then the actuator can operate safely within vehicle-specific limits, but development costs, manufacturing costs, and storage costs increase significantly
Solution Approach 1:
The actuator is designed with a universal threshold value storage capability that can accommodate multiple vehicle series. Instead of requiring separate actuators for each vehicle type, a single actuator design with sufficient memory capacity can store threshold values for multiple applications, eliminating the need for vehicle-specific hardware variants and reducing development and manufacturing costs
Solution Approach 2:
The threshold values are stored as changeable parameters in the actuator's memory. This allows the same actuator hardware to be configured for different vehicle series by simply loading appropriate threshold values into memory, rather than requiring physical modifications or different hardware designs for each vehicle application
2Adaptability or versatility
If multiple actuators with different threshold values are produced for different motor vehicle series, then each actuator can be optimized for its specific vehicle, but storage costs and complexity increase
Solution Approach 1:
A single actuator design with expanded memory capacity serves multiple vehicle series, eliminating the need to manufacture and store multiple different actuator variants. The universal actuator can be configured for any supported vehicle series through software configuration rather than hardware differentiation
Solution Approach 2:
Instead of manufacturing physical copies of actuators for each vehicle series, the patent uses digital copying of threshold value sets. The same actuator hardware can be programmed with different threshold value configurations for different vehicles, replacing physical duplication with digital configuration
3Productivity
If the actuator operates at high speed, then productivity is improved, but the risk of exceeding the threshold value and causing damage increases
Solution Approach 1:
The control device continuously monitors the actual value of the actuator and compares it with the stored threshold value. This feedback mechanism allows the system to operate at high speeds while automatically detecting when the actual value approaches the threshold, enabling timely intervention to prevent damage
Solution Approach 2:
The control device is configured to take preliminary action by setting the actual value equal to the threshold value when the threshold is approached, before damage can occur. This preemptive measure stops the actuator operation in advance to prevent exceeding safe limits, allowing high-speed operation without increasing damage risk
Data Source
Figure 1~2
AI summary
The invention relates to a method for operating an actuator (4) for a motor vehicle (1), which has an actuator (6) and a signal input (7). The actuator (5) is operated based on a setpoint received via the signal input (7) and a threshold stored in the actuator (4) to adjust the actual value of the actuator (4) to the setpoint. The threshold is set to equal to the setpoint when the actuator (4) leaves an operating range defined by the threshold. The invention further relates to an actuator (4) for a motor vehicle and a method for operating an arrangement (2) comprising an actuator (4) and a control unit (3) for a motor vehicle (1).