GEM TECHNOLOGY
GEM motors has developed patented modular multiphase technology for advanced GEM in-wheel drives. This innovation is driving the future trend of e-mobility propulsion technology toward a fully integrated electric motor drive positioned closest to the wheel. With this technology, we simplify vehicle electrification and minimize the number of required components, while at the same time reducing weight and space requirements.
ADVANTAGES
EXCELLENT SYSTEM EFFICIENCY
- Motor and motor controller efficiency of up to 92%
- Up to a 20% driving range increase due to lower losses
- Up to a 10% reduced energy consumption due to motors regeneration feature
SUPERIOR PERFORMANCE
- Smooth operation due to unique multiphase motor operation with FOC control
- Excellent climbing ability and fast acceleration due to high starting torque
- No mechanical transmission and quiet operation
SAFE AND RELIABLE ELECTRIC DRIVE
- Human-safe low voltage operation below 75V DC
- Electromagnetic emission up to ten times lowered compared to other solutions
- High redundancy due to multiple three phase sub-motors running in parallel
ADVANCED AND SMART SOLUTION
- Optimal space and weight saving solution with a minimum number of parts
- Fully integrated and modular direct electric drive solution for variuos applications
- Sensor integration into the wheel for smart operation and diagnostics
COMPARISON
Current state-of-the-art electric propulsion for Small and Light Electric Vehicles available on the market and comparison to GEM in-wheel drive.
The in-wheel solution introduces some significant advantages compared to the central motor with transmission, which is a rather heavy and complex propulsion system. GEM in-wheel drive offers an optimized direct-drive propulsion with high torque and increased overall efficiency. It is in line with the future trends of highly integrated solutions, reducing weight, space and number of parts for an electric propulsion.
The future of eMotion
