Stan van der Meulen

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1 Background The infinite number of transmission ratios in a continuously variable transmission (CVT) provides more freedom to match the engine operating conditions to the variable driving conditions in comparison with power transmission devices with a fixed number of transmission ratios. This improves the fuel consumption of the vehicle. The transmission(More)
— The variator in a pushbelt continuously variable transmission (CVT) enables a stepless variation of the transmission ratio within a finite range. Nowadays, the variator is electronically controlled and the variator control objectives are twofold: 1) tracking a transmission ratio reference; 2) optimizing the variator efficiency. Recently, the extremum(More)
—The design of an efficiency optimal controller for the variator in a vehicular continuously variable transmission is studied. A conventional controller aims at tracking a prescribed reference for the transmission ratio and at preventing damage, but does not address efficiency. Sufficiently accurate models for the efficiency as function of the clamping(More)
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