Vehicle Control Lever with Automatic Reset Mechanism
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Solution Overview
Problem
Existing control systems for vehicles, such as excavators, require manual operation of joysticks to control movable elements, lacking automatic control and programmability, which limits efficiency and safety, especially in complex operations.
Innovation Solution
A control system with a control lever element connected to actuator and restoring elements, allowing rotation around a reference point for deflection in multiple directions, enabling automatic control and programmable movement sequences without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operation of joysticks is used to control movable elements, then the control system is simple and reliable, but the efficiency and productivity are limited
Solution Approach 1:
The control lever element automatically returns to its basic position through the restoring element (spring) without requiring manual intervention. The system serves itself by using the stored elastic energy in the restoring element to reset the control lever after actuation, enabling automatic reset functionality that improves productivity without proportionally increasing complexity
Solution Approach 2:
The restoring element (spring) is pre-loaded during the actuation phase to store elastic energy. This preliminary storage of energy enables the automatic return of the control lever to its basic position, allowing the system to prepare for the next control cycle without waiting for manual reset, thereby improving operational efficiency
2Reliability
If automatic control and programmability are added to the control system, then efficiency and safety are enhanced, but the device complexity increases
Solution Approach 1:
The control system incorporates sensors that detect the position of the control lever element and provide feedback signals to the control unit. This feedback mechanism enables the system to monitor its own state, implement safety protocols, and execute pre-programmed movement sequences automatically, enhancing operational safety through closed-loop control
Solution Approach 2:
The patent replaces purely mechanical manual control with an integrated electromechanical system. The control unit processes sensor signals and actuates the movable elements through electronic control, substituting manual mechanical operations with automated electromechanical control to improve safety and enable programmability
3Ease of operation
If the control lever element requires manual return to basic position, then the structure is simpler, but the ease of operation is reduced
Solution Approach 1:
The restoring element (spring) acts as a counterbalancing mechanism that automatically counteracts the position of the control lever element. When the control lever is actuated from its basic position, the spring stores energy and automatically returns the lever to its original position, providing an automatic reset function that significantly improves operator convenience without adding complex active control mechanisms
Data Source
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Figure 2a~2b
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AI summary
The invention relates to a control system for vehicles, in particular commercial vehicles, comprising a control lever element arranged along a first system axis, wherein the first system axis is rigidly connected at a reference point to a second system axis and a third system axis, wherein, starting from a basic position of the control system, the control system can be deflected by means of a rotation about the reference point, wherein at least one actuator element for actively moving the respective system axis and/or at least one reset element for returning the respective system axis to the basic position of the control system is connected to at least one of the second or third system axes by means of an upper end of a longitudinal axis.