Tyre Pressure and Infra-Red Sensor (High Baud Rate) Product Summary McLaren Applied Technologies McLaren Applied Technologies McLaren Technology Centre Suite 115 Chertsey Road Bostick Building Woking 9801 West Kincey Avenue Surrey Huntersville GU21 4YH NC 28078 UK USA Phone: +44 (0)1483 261400
[email protected] Phone: +001 (704) 660 3181 Fax: +44 (0)1483 261402 www.mclaren.com/mat Fax: +001 (704) 660 8829 © McLaren Applied Technologies 2014 Revision Date: 2 Aug 2012 Page 1 of 5 Tyre Pressure and Infra-Red Sensor (High Baud Rate) The system consists of a powered pressure and temperature sensor with transmitter fitted to a wheel rim. This sends pressure and temperature data over an RF link to a compact receiver on the car. Sampling rates increase automatically when either a change in pressure is detected or when wheel inertia is detected. The system stops transmitting below a threshold pressure to preserve battery life. The receiver sends data to the car control via CAN. Electrical • Supply voltage 2.8-3.6V (internal Lithium Thionyl Chloride battery) • Lifetime1 > 300,000 transmissions • Transmission count included in transmitted data • Battery voltage measured on full load • Transmission rate: governed by rate of change of pressure and rotation of the wheel. Structured to preserve battery life. Tyre Pressure • Pressure range 4.4 to 30psi gauge (0.3 to 2.068 Bar) • Pressure resolution 0.01 psi/bit (0.69mBar/bit) • Pressure accuracy ±0.15psi (±10mBar) typical, ±0.3 psi (±20mBar) max Tyre Temperature (IR Sensor) • Output voltage Target -20°C