Sensors for Detection of Neutral Position on Manual Transmissions - Start-Stop-Application (Mild Hybrid)

Tyco Electronics: New legal requirements for fuel and CO2 reductions also require appropriate optimizations in the powertrain. Various automobile manufacturers have developed and implemented Start-Stop systems currently on the market Due to system requirements, it is necessary to detect the transmission neutral position as one of the controlling variable.

In collaboration with a leading automobile manufacturer and two gearbox suppliers, Tyco Electronics has developed a contactless sensor for detecting the neutral position at various manual transmissions. This sensor is based on PLCD technology (Permanentmagnetic-Linear-Contactless-Displacement). A permanent magnet, located at the shifting shaft, serves as the target object, whose position will be reflected in the neutral zone. The PLCD sensor is mounted on the outside of the gearbox and detects the neutral position of the transmission. Due to the functional principle of a non-contact system, mechanical wear is avoided and the system requirements of measurement performance, durability, and reliability can be fulfilled.

The PLCD-technology will not be used solely for neutral detection in manual transmissions. Due to its robustness, the possibility of large scale integration and high linear performance, this technology is preferred at new transmission generations like automatic manual gearboxes (AMT) or dual clutch / power shift transmissions.

Information about Tyco Electronics – Automotive Sensors:

As a specialist for non-contact sensors (Position, Travel, Angle, Speed, Temperature) Tyco Electronics offers innovative technologies and product solutions for automotive applications:

• Transmission (Neutral, Drive Mode, Gear/Shift position, Speed Sensors)
• Clutch (Position Sensors for Master, Slave and Concentric Slave Cylinder, Clutch Pedal)
• Seat (Seat Track Position, Seat-belt buckle)
• Steering (Torque, Steering and Motor Angle Sensor, Rear Axle Steering Cylinder)
• Brake (Brake Light Switch, Wheel Speed Sensor, Brake Simulation Module or Brake Master Cylinder)
• Chassis (Chassis Level, Convertible Roofs, E-gas Modules)
• Engine and Exhaust Management (Throttle, Air Control, Turbocharger, EGR, Cam- and Crankshaft)
• Convenience Applications (Door Lock Units, Convertible Sun Roof)
• Fuel Level Management (Fuel Level Sensor, Filter Water Detection, Fuel Pump Control)

About Tyco Electronics

Tyco Electronics Ltd. is a leading global provider of engineered electronic components, network solutions, specialty products and undersea telecommunication systems, with fiscal 2008 sales of US$14.4 billion to customers in more than 150 countries. We design, manufacture and market products for customers in a broad array of industries including automotive; data communication systems and consumer electronics; telecommunications; aerospace, defense and marine; medical; energy; and lighting. With approximately 7,000 engineers and worldwide manufacturing, sales and customer service capabilities, Tyco Electronics' commitment is our customers' advantage. More information on Tyco Electronics can be found at http://www.tycoelectronics.com/.

For technical information, please contact:

Tyco Electronics AMP GmbH
Michael Ludwig
Phone: +49 6232-30-2502
E-mail : m.ludwig@tycoelectronics.com


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