Anti-lock braking systems (ABS) reduce accidents and save lives. This is well-known and proven for 2-wheel as well as 4-wheel vehicles. Although not nearly as widely implemented as on 4-wheel vehicles, 2-wheeled motorcycles and scooters have increasing reasons for ABS implementation to be far more extensive in the future. Freescale Semiconductor is a leading supplier of semiconductors for ABS today and has been since the technology was widely introduced for ground vehicles in the 1980s. With this extensive history and application insight, Freescale is strategically positioned to understand and address the industry requirements for 2-wheel and 1-wheel motorcycle and scooter applications.
In Anti-Lock Braking Sytem (ABS) control, a wheel speed sensor or tone wheel measures the vehicle’s speed. A microcontroller (MCU) in the ABS electronic control unit (ECU) uses these measurements to determine if the vehicle is about to stop rotating. If this occurs, the MCU signals an analog mixed-signal (AMS) integrated circuit (IC) in the ECU to actuate a hydraulic valve and adjust the pressure of the brake cylinder on the brake caliper. This can occur several times per second.
Target Applications
- Anti-lock braking system (ABS)
- ADAS
