초록 ▼

A hybrid vehicle is powered by a drive system including an internal combustion engine (11), a generator (16) and an electric motor (25). A differential gear unit (13) is arranged between the engine and the generator, which includes at least three gear elements, the first (S) being connected to the g

A hybrid vehicle is powered by a drive system including an internal combustion engine (11), a generator (16) and an electric motor (25). A differential gear unit (13) is arranged between the engine and the generator, which includes at least three gear elements, the first (S) being connected to the generator, the second (R) being connected to a torque output shaft (14) and the third (CR) being connected to the engine. A controller (51) is operated to control an engine speed based on an output rotation speed of the second gear element or torque output shaft detected by a sensor (53), so that rotation of the generator is restricted even if some accident happens to the generator.

대표청구항 ▼

[ What is claimed is:] [1.] A hybrid vehicle comprising an internal combustion engine for generating mechanical energy; a generator for converting said mechanical energy into electricity; an electric motor driven by said electricity to output rotational power through an output shaft; a differential

[ What is claimed is:] [1.] A hybrid vehicle comprising an internal combustion engine for generating mechanical energy; a generator for converting said mechanical energy into electricity; an electric motor driven by said electricity to output rotational power through an output shaft; a differential gear unit including at least three gear elements, the first being connected to said generator, the second being connected to said output shaft and the third being connected to said internal combustion engine; a speed sensor for detecting an output rotational speed of said second gear element; and a controller operated in response to the output rotational speed detected by said speed sensor to control speed of said engine so as not to exceed an upper limit predetermined to prevent an excessive increase in generator speed.