Erland Olofsson is a qualified Structural Engineer and accomplished master builder. The idea of the Accelerator Pedal with Braking Action is the result of Erland combining his engineering background with the desire and task of reducing road accidents.
The first ETBS prototype was developed in 2000. The protptype was successfully installed and used in a motor vehicle.
A second electronic prototype was developed in 2009 further improving stopping distance and operator fatigue. Significant testing was conducted in conjunction with Human Impact Engineering resulting in significant improvements.
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ET BRAKING SYSTEM (ETBS)
ET Braking System Pty Ltd has devised a novel system to reduce the braking distance of a vehicle. The ETBS links the braking operation to the top end of the accelerator pedal motion, with the remainder of the motion of the accelerator pedal operating in its usual manner. It can be applied to cars, trucks and buses, by either retrofit or as part of the original equipment of the vehicle provided the vehicle has automatic transmission.
The device aims to reduce driver fatigue, increase productivity and decrease stopping distance in emergency braking situations. It is expected that this change will reduce both the number of accidents and injury severity sustained by crash victims.
SYSTEM IS PATENTED.
An ETBS equipped vehicle continues to comply with the requirements of the applicable Australian Design Rules (ADRs) for motor vehicles, specifically with ADR 31/02 Brake Systems for Passenger Cars and ADR 35/03 Commercial Vehicle Brake Systems.
A test program, which compared an ETBS equipped vehicle to one without, was conducted. The test evaluated the effect of the ETBS on emergency braking.
When decelerating from 80km/h, the ETBS equipped vehicle would reach 20 km/h 5.1 metres before the vehicle without ETBS. The vehicle without ETBS would be still travelling at 35.2 km/h. The research results relating impact speed to pedestrian injury obtained by Ashton SJ and Mackay1 (1979) shows that in an impact with a pedestrian at a speed of 35km/h for the standard vehicle, there is a possibility of fatal injury occurring to a pedestrian, a 65% chance of serious injury and about a 32% chance of slight injury. While at an impact speed of 20 km/h for the ETBS equipped vehicle, the injuries are most likely to be slight with only a 10 to 15% risk of being severe.
A pedestrian impact involving braking from speed, the vehicle with ETBS gives a significant reduction in injury risk. Similarly, in a vehicle to vehicle impact involving braking from speed, the vehicle with ETBS gives a significant reduction in injury risk as well.
The ETBS does this by directly changing pre-braking time (Tvz) of the vehicle by reducing time required for the driver to apply the service brake.
Safer alternative to traditional braking because: