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Development of a Custom Integrated Circuit for Continuously Variable Valve Lift Mechanism System Control
Technical Paper
2008-01-0913
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
To improve fuel efficiency in a conventional gasoline engine, Toyota Motor Corporation has developed and mass-produced a continuously-variable valve lift (CVVL) system that reduces the pumping loss at low engine load by continuously changing the stroke of the intake valve of the engine. The electronic driver unit (EDU) controls the actuator in an integrated structure. In the EDU, the application specific integrated circuit (ASIC) has an important function to control the motor and to secure failsafe by executing mutual watch with the CPU. We developed this ASIC by using silicon on insulator (SOI) processes suitable for the high temperature system requirements.
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Authors
- Kazuya Kinoshita - Electronics Engineering Div. 3, Vehicle Engineering Group, Toyota Motor Corporation
- Kazuhiko Ueda - Electronics Engineering Div. 3, Vehicle Engineering Group, Toyota Motor Corporation
- Fumihiko Ito - Electronics Engineering Div. 3, Vehicle Engineering Group, Toyota Motor Corporation
- Yasushi Shinojima - Electronics Engineering Div. 3, Vehicle Engineering Group, Toyota Motor Corporation
- Takashi Yanagizawa - Electronics Engineering Div. 2, Vehicle Engineering Group, Toyota Motor Corporation
- Tomokazu Sakaguchi - Electronics Engineering Div. 2, Vehicle Engineering Group, Toyota Motor Corporation
- Tetsuya Yamazaki - Electronics Engineering Div. 2, Vehicle Engineering Group, Toyota Motor Corporation
Topic
Citation
Kinoshita, K., Ueda, K., Ito, F., Shinojima, Y. et al., "Development of a Custom Integrated Circuit for Continuously Variable Valve Lift Mechanism System Control," SAE Technical Paper 2008-01-0913, 2008, https://doi.org/10.4271/2008-01-0913.Also In
References
- Yamaoka Takeo What is Valvematic of TOYOTA, automotive engineering 56 10 2007 46 57
- Kawase Hiroyuki et al. Development of variable valve mechanism for high performance engine “VVTL-i” TOYOTA Technical Review 50 2 2000 22 27
- Hayashi Tatsuhiko Variable engine technology Nikkei Automotive Technology Spring 2006 130 135
- Hayashi Tatsuhiko Realization of high fuel efficiency, high output power and response improvement by the variable valve event lift mechanism “VVEL” Nikkei Automotive Technology July 2007 22 23
- Klaus, B. et al. Further Development of BMW's Fully-Variable Valve Control System “Valvetronic” MTZ09/2005 2005 650 658