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Abstract
This research mainly aims at the construction of the novel acceleration pedal, the brake pedal and the steering system by mechanical designs and mechatronics technologies, an approach of which is rarely seen in Taiwan. Three highlights can be addressed: 1. The original steering parts were removed with the fault tolerance design being implemented so that the basic steering function can still remain in case of the function failure of the control system. 2. A larger steering angle of the front wheels in response to a specific rotated angle of the steering wheel is devised when cornering or parking at low speed in interest of drivability, while a smaller one is designed at high speed in favor of driving stability. 3. The operating patterns of the throttle, brake, and steering wheel can be customized in accordance with various driving environments and drivers’ requirements using the self-developed software. The implementation of a steer-by-wire system in the remote driving control for a go kart is described in this study. The mechatronic system is designed in order to support the conversion from human driving to autonomous driving for the go kart in the future. The go kart, using machine vision, is wirelessly controlled in the WiFi frequency bands. The steer-by-wire system was initially modeled as a standalone system for one wheel and subsequently developed into its complete form, including front wheel steering components, acceleration components, brake components, a microcontroller, drive circuit and digital to analog converter. The control output section delivers the commands to the subsystem controllers, relays and converters. The remote driving control of the go kart is activated when proper commands are sent by the vehicle control unit (VCU). All simulation and experiment results demonstrated that the control strategies of duel motors and the VCU control were successfully optimized. The feasibility study and performance evaluation of Taiwan’s go karts will be conducted as an extension of this study in the near future.
Highlights
A technology known as drive-by-wire, called “x-by-wire” or “by-wire,” may change the way people drive or the service model
In drive-by-wire system system with withaasteer-by-wire steer-by-wiresystem systemfor forthe thegogo kart was built, In this this study, study, the the drive-by-wire kart was built, as as shown control-by-wire of the steering wheel integrated accelerator shown in in TheThe control-by-wire of the steering wheel integrated withwith the the accelerator and and brake pedal steering were developed for the electric go kart
This paper presents a hardware platform for an electric go kart equipped with a drive-by-wire system possessing a remote control mode to complete the functions of acceleration-by-wire, brake
Summary
A technology known as drive-by-wire, called “x-by-wire” or “by-wire,” may change the way people drive or the service model. A vehicle with this type of system focuses mainly on electronics to control a wide range of vehicle operations, including: acceleration, braking and steering [1]. By replacing conventional throttle systems, drive-by-wire systems can significantly reduce the number of mechanical parts in a vehicle. This reduces weight and increases operational accuracy, and prolongs the period between each routine service for mechanical maintenance and other adjustments. Some drive-by-wire systems even require nearly no service. Less weight and better accuracy can lead to higher fuel efficiency and lower emissions [2]
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