Based on the engine mathematical model and engine control law, the optimal control for turbo shaft engine acceleration is investigated.

在了解原型发动机数学模型和控制规律的基础上，对涡轴发动机加速过程的最优控制问题进行了研究。

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By this method, the engine acceleration performance can be improved greatly and each constraint in the acceleration process is satisfied.

该方法可以提高发动机的加速性能并满足加速过程中的各项约束条件。

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The engine delivers instant acceleration whatever the revs.

不论转速如何，发动机都可以立即加速。

《柯林斯英汉双解大词典》

An electric boost function helps in instances where maximum acceleration is desired, when the electric motor works in tandem with the combustion engine during acceleration.

ENGADGET: Porsche Panamera S E-Hybrid plug-in model brings 416 guilt-free horsepower

The only time that the car gets really shouty is when you lash the engine during hard acceleration.

WSJ: 2012 Scion iQ Review: Slow, Whiny, Tiny��but Great to Park | Rumble Seat by Dan Neil

And, similar to Dyson, Lugg is proposing to achieve these radical efficiencies by coordinating multiple engine systems (analogous to the acceleration, inducement and entrainment of the Air Multiplier) to create optimal conditions for each stage of flight and to use the excess energy the system produces to create a plasma field to reduce drag and eliminate sonic boom.

FORBES: For Radical Innovation, Nature Loves A Vacuum