RC Transbrake Control for Precise Drag Race Launches
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Solution Overview
Problem
Existing RC model vehicles face challenges in precise throttle control during drag racing, particularly in initiating the race with optimal power and minimizing slipping, due to the inability to simultaneously adjust throttle and brake positions.
Innovation Solution
A transbraking system with a transbraking actuator on the transmitter allows the operator to set the throttle position without moving the vehicle, engaging the transbrake to maintain neutral, and then disengaging it for precise throttle control at the start.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the operator adjusts the throttle position on a conventional RC vehicle, then the vehicle moves immediately, but this prevents precise throttle positioning without unintended movement
Solution Approach 1:
The transbrake actuator allows the operator to pre-position the throttle at the desired level while the transbrake keeps the vehicle stationary. This preliminary throttle positioning action is performed before the race start, enabling precise setup without the vehicle moving. When the start signal is given, the operator simply releases the transbrake to launch with the pre-set throttle position.
2Loss of time
If the operator tries to simultaneously control throttle and brake positions, then response time improves, but the inability to independently adjust each control reduces precision
Solution Approach 1:
The system separates the functions of throttle control and brake control into independent operations. The transbrake actuator independently manages the braking function, while the throttle stick independently controls power. This segmentation allows the operator to adjust throttle position precisely without needing to simultaneously manage brake position, as the transbrake handles the braking function separately.
3Speed
If the vehicle launches immediately when throttle is applied, then speed is maximized, but slipping occurs due to inability to hold neutral position
Solution Approach 1:
The transbrake provides a preliminary counteracting force that prevents the vehicle from moving while the throttle is being positioned. By applying this opposing braking force in advance, the system counteracts the tendency of the vehicle to slip when power is applied, allowing the operator to set the throttle to the optimal position without the wheels spinning or the vehicle moving prematurely.
Data Source
AI summary
A radio controlled model vehicle system, transmitter, and method are provided. The radio controlled model vehicle system includes a transmitter containing a transbrake actuator and a throttle input producing throttle commands. The radio controlled model vehicle may include a receiver that receives the throttle commands sent by the transmitter. Wherein the transmitter sends the throttle command corresponding to a position of the throttle input to the receiver when the transbrake actuator is not engaged and sends a throttle command corresponding to a neutral position of the throttle input when the transbrake actuator is engaged. In addition, wherein a motor of the radio controlled model vehicle is powered at a rate corresponding to the throttle command.