WEICHAI POWER CO., LTD.

Addresses the design and arrangement of electric motors, transmissions, and associated power electronics (like inverters) to form integrated drive units for hybrid or electric vehicles, including specific components like busbars and electric brakes.

Control systems for managing vehicle braking and maintaining a stationary state, including brake pedal actuation sensing, automatic brake hold functions, and coordination with parking brakes.

Techniques and mechanisms to optimize the performance, energy consumption, and operational range of compressors in refrigeration and heat pump systems, often involving variable control of compression parameters like volume ratio or speed.

Methods and components for optimizing the performance, efficiency, and control of electric motors, inverters, and power converters within electric vehicle and hybrid vehicle drivetrains.

Application of protective layers to improve the durability and longevity of components by enhancing resistance to wear, oxidation, or chemical degradation in demanding operational environments.

Transmissions designed to provide a continuous range of gear ratios between fixed limits, often employing ball-planetary, toroidal, or belt-pulley mechanisms, and including their control systems for stable operation in various directions.

Novel designs and configurations for heat exchangers that improve heat transfer efficiency, compactness, or enable specific phase change or separation processes within refrigeration and heat pump cycles.

Systems designed to manage the temperature of multiple components in electric or hybrid vehicles, such as batteries, electric motors, power electronics, and the passenger cabin, often using shared or interconnected cooling/heating circuits.