Abstract

The 2009 model year INSIGHT was developed with the goal of achieving a higher level of actual fuel efficiency and driving performance.An analysis has revealed that the ways of operating a vehicle that result in reduced fuel economy are rough accelerator operation during vehicle cruising, excessive accelerator operation during acceleration, and accessory loads, such as air conditioning.The developed system employs fuel economy priority control, which uses an ECON mode selector switch to permit high fuel economy driving. In ECON ON mode, the engine and transmission are coordinated with each other. Restricting the engine throttle and optimizing the CVT shift response enable the minimum fuel consumption amount (Gram Fuel minimum; hereafter called GF minimum) to be traced, even during rough accelerator operation, thus facilitating low-fuel-consumption driving. In tests of actual fuel efficiency, these technologies reduced the level of variation between users and enabled the achievement of a 9.5% reduction in average fuel consumption in ECON ON mode.

References

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Author (organization or company)

• Toshihiko FUKUDA（Automobile R&D Center）
• Takahiro EGUCHI（Automobile R&D Center）

Publication Information

Article of Honda R&D Technical Review Vol.21 No.1 (88 - 94)

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Citation Information