What are the faults of the third-generation iMMD hybrid transmission?
1 Answers
The cause of faults in the third-generation iMMD hybrid transmission may be abnormal continuously variable transmission. Below is relevant information about faults in the third-generation iMMD hybrid transmission: 1. Continuously Variable Transmission: Honda's iMMD (Intelligent Multi-Mode Drive) system consists of a high-efficiency engine, an E-CVT with integrated dual motors, a Power Control Unit (PCU), and high-discharge-rate lithium batteries. CVT (Continuously Variable Transmission) simulates gear positions through steel belts, while E-CVT is completely different from CVT, simply understood as electronic continuously variable transmission that simulates gear positions through motor speed variation. 2. Differences between the third and second generations: The system architecture of the third-generation iMMD transmission shows no significant changes compared to previous generations. The second-generation iMMD includes two clutches: a wet clutch connecting the engine to the wheels for high-speed direct drive, and a normally closed clutch connecting the engine to the generator. Compared to the second generation, the main difference in the third generation is the replacement of the normally closed clutch between the engine and generator with a dry single-plate clutch.