Throttle Sensor Multi-Function Cancellation for Motorcycle Cruise Control
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Solution Overview
Problem
Existing throttle control systems for saddle-ride vehicles require a cancel switch to cancel automatic cruise control operations, increasing the number of parts and case size.
Innovation Solution
A throttle control device that eliminates the need for a cancel switch by using a throttle sensor to detect rotation from the fully closed position to the throttle closing side, triggering the control unit to cancel automatic cruise control operations, and incorporating repulsive means and resistance adding means to prevent undesirable cancellations and adjust rotation load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cancel switch is used to cancel automatic cruise control operations, then the cruise control can be cancelled, but the number of parts increases and case size increases
Solution Approach 1:
The throttle sensor is made multi-functional by enabling it to detect both normal throttle operations and cancellation operations. The sensor detects rotation from the fully closed position to the throttle closing side as a cancellation signal, eliminating the need for a separate cancel switch while maintaining the cancellation function.
Solution Approach 2:
The cancellation function is merged with the existing throttle sensor and control unit. Instead of adding a separate cancel switch, the patent combines the cancellation detection capability into the throttle sensor's existing detection functions, thereby reducing part count while maintaining functionality.
2Reliability
If a cancel switch is used to cancel automatic cruise control operations, then the cruise control can be cancelled, but case size increases
Solution Approach 1:
The throttle sensor is made multi-functional by enabling it to detect both normal throttle operations and cancellation operations. The sensor detects rotation from the fully closed position to the throttle closing side as a cancellation signal, eliminating the need for a separate cancel switch while maintaining the cancellation function.
Solution Approach 2:
The cancel switch is extracted from the system by using the existing throttle sensor to perform the cancellation detection function. This removes the need for additional hardware components that would increase case size.
3Device complexity
If the throttle sensor detects rotation from fully closed position to throttle closing side, then cancel switch is eliminated, but unintended cancellation may occur
Solution Approach 1:
Repulsive means are provided to prevent the rotor from rotating unintentionally from the fully closed position to the throttle closing side. The repulsive means applies a counteracting force to prevent unintended cancellation while allowing intentional cancellation when the rider deliberately operates the throttle grip.
Solution Approach 2:
The control unit monitors the throttle sensor signals to determine whether cancellation should be executed. By analyzing the detection signals and comparing them against expected operational patterns, the control unit can distinguish between intentional cancellation operations and unintended rotations, thereby preventing false cancellations.
4Reliability
If repulsive means are added to prevent unintended cancellation, then reliability improves, but device complexity increases
Solution Approach 1:
The repulsive means utilizes the existing rotor structure and throttle sensor system to provide prevention functionality. The repulsive means works passively to prevent unintended rotation without requiring additional active control systems or complex mechanisms.
Solution Approach 2:
The repulsive means acts as an intermediary mechanical element between the rotor and the throttle closing side. It provides a physical barrier that prevents unintended rotation while allowing intentional operations, thereby adding minimal complexity to the system.
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
Reduces the number of parts and case size by eliminating the need for a cancel switch, prevents unintended cancellation of automatic cruise control, and simplifies the structure while providing adequate rotation load for the throttle grip.
Implementation Method 1
a spring provided between the sensor housing and the rod, the spring exerting an elastic force in a direction in which the rod abuts on the abutting projection
Data Source
AI summary
A throttle control device for a saddle-ride type vehicle includes a throttle sensor is disposed in a case at a fixed position to detect an amount of a rotation operation of a throttle grip in accordance with a rotation of a throttle pipe. An operation of an actuator which drives a throttle valve to open and close is controlled by a control unit on the basis of a detected value of the throttle sensor. The throttle control device does not require a cancel switch to cancel an operation of an automatic cruise control device, which in turn reduces the number of parts, allowing size reduction of the case fixed on a bar handle.