Motorsport Solutions

Magni-Tec® specialises in manufacturing data acquisition and control sensors for the chassis and engine used in motorsport. The sensors utilise extremely 'long-life' Magni-Coil® and Magni-Hall® contactless measurement technology.

Magni-Hall® sensors are based on true solid-state ‘hall-voltage/magnetic-field’ measurement technology. The sensors have significant design benefits, including improved output signal linearization over the measurement range, overall sensor accuracy and higher operating temperatures compared to similar position sensor products.

Magni-Coil® technology is specifically designed to replace the complicated electronic circuits used for LVDT sensors, and they operate from a simple 3-wire low-current circuit. Reliability is paramount and the signal-conditioning electronics offers sufficient versatility to meet the application requirements with a minimum number of components.

Magni-Tec® sensors are fully encapsulated (sealed IP68 & IP69K) against the ingress of fluid and debris, and are an ideal measurement solution in control and monitoring systems that experience high g-forces, severe vibration, and operate at elevated temperatures. The sensors are used worldwide in F1, GP2, IRL, DTM, NASCAR, WRC, NHRA, MotoGP, BTCC and many other racing series. Customer specific sensors can be designed and manufactured within two weeks.

Throttle position sensors
A racecars throttle position sensor (TPS) is used to monitor the position of the throttle valve and is mounted on the throttle body. It coverts valve position into a proportional voltage signal which is fed to the engine control unit (ECU). The sensor signal is used by the ECU to control the ignition and fuel injection timing.

Suspension monitoring sensors
Racecar handling depends on the balanced set up of the suspension, whether its the traditional four springs and four dampers, mono-shocks or electronically adjustable hydraulic actuators (active suspension), race engineers need to monitor suspension movement to aid set-up and drivability.

Gear position & control sensors
Virtually every racecar uses a sequential shift rather than the 'H' pattern gearbox. The reason being that sequential shift is quicker and more consistent. The selector drum is rotated manually or by an electro-hydraulic actuator. Sequential gearboxes have a gear position sensor fitted to measure the position of the selector drum.

Clutch position & control sensors
Most high performance racing car clutches are automatically operated during gear changes. The clutch's electro-hydraulic actuation system requires two proportional measurement sensors, one on the steering wheel and one mounted next to the clutch (the feedback sensor).

Brake calliper Magni-Coil sensors
Some of the hardest working parts on a racecar are the brakes. Formula One and Endurance racing can experience high brake disc wear and race engineers need to monitor this wear by mounting a miniature linear position sensor across one of the pistons in the brake calliper.

Pedal position monitoring sensors
In racecar applications, pedal position sensors are used to monitor throttle and brake pedal movement or, in 'drive by wire' applications, operate the throttle via an electronically controlled actuation system. The sensor can be either rotary or linear in operation and is mounted with the operating shaft connected to the pedal.

Brake master cylinder position sensors
Race engineers monitor master cylinder movement during racing to assist the driver in making brake balance adjustment based on car performance in ever-changing tyre and track conditions.

Brake balance adjustment sensors
Correct brake balance allows the driver to brake later and heavier into corners, which helps improve lap times. Rear brake lock-ups can cause the rear end to become loose and cause a potential spin. Position sensors are used in brake balance systems to monitor or control adjustments made by the driver during the race.

Steering angle measurement sensors
Steering-angle position sensors measure steering wheel movement and are usually mounted on the steering column (rotary sensor) or the steering rack (linear sensor). The steering angle information is important to evaluate the vehicles steering characteristics verses chassis movement.

Speed sensing solutions
Magni-Tec® speed sensors are designed for use in the automotive, industrial, railway and the aerospace industries. The sensors provide speed and direction information for control and measurement systems. Applications include speed control, braking systems, traction systems and data recording.