Gill Pratt, TRI Chief Executive Officer and Toyota Motor Corporation Chief Scientist, comments: “Every day, there are deadly vehicle crashes that result from extreme situations where most drivers would need superhuman skills to avoid a collision. The reality is that every driver has vulnerabilities and to avoid a crash, they often need to make manoeuvres that are beyond their abilities. Through this project, TRI will learn from some of the most skilled drivers in the world to develop sophisticated control algorithms that amplify human driving abilities and keep people safe.”
Toyota’s objective is zero casualties from traffic accidents. While most crashes occur in everyday driving situations, there are occasions where evasive action requires manoeuvres that take the vehicle close to, and sometimes beyond, its normal handling limits. For example, on a wet or slippery road, professional drivers may choose to “drift” the car through a bend, skilfully balancing the brakes, throttle and steering.
Professor Chris Gerdes of Stanford University’s Dynamic Design Laboratory explained: “Since 2008, our lab has taken inspiration from human race car drivers in designing algorithms that enable automated vehicles to handle the most challenging emergencies. Through this research we have the opportunity to move these ideas much closer to saving lives on the road.”
The current project draws on a published Stanford paper, Opening New Dimensions: Vehicle Motion Planning and Control Using Brakes while Driving, in which researchers demonstrated advanced driving with MARTY, an electrified and automated DeLorean car. The results of the experience produced a proof of concept architecture capable of controlling a rear-wheel drive vehicle in drift, using brakes, steering and propulsion.
TRI is now looking into applying this architecture to other vehicle platforms and engaging Toyota’s motorsports and advanced development engineering expertise. Toyota Racing Development and Toyota’s American motorsports operation, TRD USA, is providing valuable technical and experiential know-how in racing and drifting. Separately, TRI is working with Toyota Motor Corporations Vehicle Dynamics Control Team to apply the drifting architecture to future Toyota vehicles.