Rearview Camera Based Parking Assist System with Voice Guidance 2002-01-0759
A newly developed parking assist system, which is based on rear view camera, is disclosed.
System features include ‘parallel parking aid’ with voice guidance message along with several guidelines superimposed onto the rear view camera image. Voice guide message helps driver understand appropriate timing for each procedure of parallel parking. The system was designed to let driver follow the system by voice message rather than visual guide information through the screen for safety reason.
The guide algorism is designed under ‘two turns’ parking maneuvers so that required longitudinal parking space becomes minimal. A key development of this system, which is to design the guide algorism to avoid collision to adjacent vehicle during parallel parking operation, is also discussed in this paper.
User can select either ‘parallel guide’ or ‘normal (such as garage parking)’ mode through touch screen switch on display surface. Wide field of view color camera gives sufficient viewing area for drivers.
Our MPU based new control unit enables wide deployment of the system to any vehicle types by writing vehicle dependent data individually to nonvolatile memory in ECU fabrication line.
This paper introduces the development of the technology and system features including some test results of the system function also.