Motorcycle Twist Grip Driving Force Control via Strain Gauge

The patent replaces the conventional mechanical rotation-based throttle control with a twisting force detection system using strain gauges. The handlebar grip remains fixed in position while strain gauge detection means detect twisting forces applied by the driver, converting mechanical twisting motion into electrical signals for electronic control of the motive power source output. This substitution eliminates the need for large rotational movements that disrupt driver posture.

The patent introduces an intermediary detection system (strain gauges) between the driver's hand and the control mechanism. Instead of directly rotating a throttle valve through handlebar grip rotation, the driver's twisting force is detected by strain gauges attached to the handlebar grip, and this detection signal is transmitted to the control section which then adjusts the motive power source output accordingly. This intermediary system allows precise control without physical rotation.

The patent replaces the mechanical rotation mechanism with an electronic detection and control system. The handlebar grip is secured nonrotatably to the handlebar, and twisting force detection means (strain gauges) detect the driver's twisting input. The control section processes this detection signal and adjusts the motive power source output electronically, eliminating the need for mechanical rotation while maintaining operational ease through intuitive twisting motion.

The patent transforms the static, rotation-based control interface into a dynamic, multi-directional twisting control system. The nonrotatable handlebar grip allows twisting forces in multiple directions (rotational and lateral), providing dynamic control input detection. The control section responds dynamically to these twisting forces, adjusting the motive power source output in real-time based on the detected force magnitude and direction, making the fixed grip equally easy to operate.

The patent replaces complex mechanical transmission mechanisms with a streamlined electronic system. Instead of using rotational motion transmitted through mechanical linkages to control the throttle valve, the system uses strain gauges to detect twisting forces and converts them into electrical signals. The control section electronically adjusts the motive power source output based on these signals, simplifying the overall control mechanism while achieving precise driving force control through electronic actuation rather than mechanical transmission.

The patent introduces an intermediary detection and control layer between the driver's input and the motive power source. The strain gauge detection means serve as intermediaries that convert mechanical twisting forces into electrical detection signals. The control section acts as another intermediary that processes these signals and electronically controls the motive power source output. This intermediary system provides precise control measurement while keeping the mechanical structure simple and direct.