Cadillac Has Little Known Ways to Improve Safety
The available Driver Assistance Package for the XTS is the first General Motors system of its kind to use sensor fusion, which enables integration of a broad range of sensing and positioning technologies that can alert drivers of road hazards and help them avoid crashes.
The system’s use of radar, cameras and ultrasonic sensors enables advanced safety features, including:
• Rear Automatic Braking
• Full-Speed Range Adaptive Cruise Control
• Intelligent Brake Assist
• Forward Collision Alert
• Safety Alert Seat
• Automatic Collision Preparation
• Lane Departure Warning
• Side Blind Zone Alert
• Rear Cross Traffic Alert
• Adaptive Forward Lighting
• Rear Vision Camera With Dynamic Guidelines
• Head Up Display
“We believe sensor fusion will enable future active safety systems to handle a greater number of inputs to provide 360 degrees of crash risk detection and enhanced driver assist features,” said Bakhtiar Litkouhi, GM Research and Development lab group manager for perception and vehicle control systems., in a statement made available to Torque News. “A system that combines the strengths of multiple sensing technologies and expertly manages those inputs can provide advisory, warning, and control interventions to help drivers avoid collisions and save lives.”
Sensor fusion also is a building block in the development of semi-autonomous and fully autonomous vehicles, which are designed to maintain lane position and adapt to traffic environments. It is envisioned that more sophisticated self-driving technology, that could enable semi and fully autonomous driving, will be available by the end of the decade.
GM’s leading-edge work on sensor fusion draws on its experience with The Boss, a fully autonomous Chevrolet Tahoe developed by GM, Carnegie Mellon University and other partner companies, and named for GM R&D founder Charles F. “Boss” Kettering. In 2007, The Boss navigated 60 miles of urban traffic, busy intersections and stop signs in less than six hours to win the Defense Advanced Research Projects Agency (DARPA) Urban Challenge competition.
Sensor fusion development also is bolstered by GM’s work on the EN-V, three semi-autonomous electric concept vehicles unveiled at the 2010 Shanghai World Expo. By combining GPS with vehicle-to-vehicle communications, distance-sensing and object detection technologies, EN-V can be driven both manually and autonomously, the latter allowing it to automatically select the fastest route based on real-time traffic information.