Toyota Motor Corp. said it has developed a pre-collision system (PCS) with collision avoidance assist that can help mitigate even high-speed collisions.

The newly developed PCS uses millimeter-wave radar to detect the risk of a rear-end collision with a preceding vehicle. The system warns the driver via sound and display alerts to prompt braking when such a risk is detected. When the driver applies the brakes, PCS enables deceleration of up to 37 mph by greatly increasing the braking force up to twice that of the average force applied by drivers, Toyota said.

If the brakes are not applied, automatic deceleration of 9.3 mph to approximately 18.6 mph is possible.

More than 90% of rear-end collisions occur when the difference in speed between the preceding and following vehicle is within approximately 37 mph. The new PCS was developed for use in a wide variety of models. It will be rolled out starting with soon-to-be-launched models, Toyota said.