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September 5, 2018
Alps Electric Develops Dual Output Brake Pedal Position Sensor
Ideal for Regenerative Braking Systems of Next-Generation Vehicles
TOKYO, September 5, 2018 – Alps Electric Co., Ltd. (TOKYO: 6770; President: Toshihiro Kuriyama), a manufacturer of high-quality electronic components, has developed the “RD1030211” Dual Output Brake Pedal Position Sensor, enabling voltage output to both a vehicle’s brake lights and its regenerative braking system.
According to research conducted by LMC Automotive, the share of electric, plug-in hybrid and fuel cell vehicles on the road is expected to rise to about 50% by 2030, as these vehicles continue to spread, particularly in markets such as China, where development is progressing at a rapid pace.*1
These next-generation automobiles employ regenerative braking systems that convert the turning of the wheels as they slow down into electrical energy to be used to propel the vehicle. For regenerative braking to be efficient, the system requires information about how far the brake pedal is pushed in, but conventional single-output sensors have been unable to provide the data simultaneously with output used to switch on brake lights, placing restraints on design carried out by end-product manufacturers.
In light of these circumstances, Alps Electric developed RD1030211, operating within a temperature range from -40°C to +85°C, with a detection angle of 80° and offering an operating life of 1,000,000 cycles. Analog sensing is retained for the dual-output product, having been popular with earlier single-output models. As can be seen in the picture below, installation is less work as any positional deviation is electronically calibrated, eliminating the need for the kind of physical adjustments required with switch sensing and therefore contributing to labor saving in customer production lines. The sensor is ideal for regenerative braking systems, brake light activation and cruise control deactivation, thereby contributing to compact design of next-generation vehicles.*2
*1 Reference: Global Hybrid & Electric Vehicle Forecast
(https://expert.marklines.com/lmc/global_hybrid_vehicle.html)
*2 As pedal depression output is produced for various types of brake control, the sensor is not covered by ISO 26262 functional safety.
Features
- Dual output enables diverse control applications
- Analog sensing allows electronic position adjustment for easy installation
Principal Applications
Regenerative braking systems
Brake light activation
Cruise control deactivation
Specifications
| Model | RD1030211 |
| Output linearity | ±2.5% (index point ±15°) ±3.5% (other pedal positions) |
| Operating temperature range | -40℃ to +85℃ |
| Detection angle | 80° |
| Rotational torque | 60mN・m max. |
| Operating life | 1,000,000 cycles |
Planned Release
| Mass production: | Already underway |
| Sample price | ¥1,000 (Tax excluded) |
| Development | Engineering Headquarters-Wakuya Plant (Wakuya City, Miyagi Prefecture) |
| Production | Dalian Alps Electronics Co., Ltd. (Liaoning, China) |
| Monthly output | 100,000 units (April 2021) |
About Alps Electric Co., Ltd.
Alps Electric (Tokyo: 6770) is a leading global manufacturer of high-quality electronic components for mobile devices, home electronics, vehicles and industrial equipment. With the philosophy of “Perfecting the Art of Electronics” Alps Electric supplies over 40,000 different components to about 2,000 companies all over the world. For more information, visit http://www.alps.com.