The final design is comprised of 3 systems. All three systems were designed with simplicity, reproducibility, flexibility, and durability in mind.
The systems are powered by the onboard electrical system and can be driven remotely or overridden by a rider.
The package can be applied to other Tao-Tao models with very little effort.
Steering Actuation:
A 12V DC motor drives a chain which turns the steering shaft. Almost every piece of the system is mounted within a rugged aluminum housing
Brake Actuation:
An electric-hydraulic trailer brake was repurposed to serve as a braking system on the ATV. This system is integrated into the existing braking assembly.
Throttle Actuation:
A servo was attached to the throttle linkage.
Performance Results:
Capable of reliable remote operation in dirt, mud, and brush
Steering system is capable of covering full range of motion in the worse-case scenario (stationary in ice plant) in under 1.5s
Full range of throttle is remotely controlled
Brake actuation range allows for slow deceleration or complete panic stop