Research Article

Analysis and Optimization of the Vibration and Noise of a Double Planetary Gear Power Coupling Mechanism

Table 3

Data obtained in road tests.

Working conditions (km/h) (r/min) (r/min) (N·m) (r/min) (N·m)SOC (%)

Pure electric drive condition300225016.75−2220049.5
Engine starts under the pure electric drive condition300∼800225045∼8−2218∼6620∼27.647
Low-speed cruising condition3012202205−9.252247−6.2545
High-speed cruising condition8014086010−9.95−923−20.151.3

Note. is the vehicle speed, is the engine speed, is the speed of motor MG2, is the torque of motor MG2, is the speed of motor MG1, is the torque of motor MG1, and SOC is the battery state of charge.