Proterra has chosen Eaton’s eMobility enterprise to provide a 4-speed medium-duty electrified automobile (EV) transmission for the corporate’s ProDrive drivetrain utilized in Proterra ZX5 electrical transit buses.
The medium-duty 4-speed transmission, for use in metropolis buses in North America, addresses the first concern associated to single-speed drives which have contradictory necessities for top effectivity at prime speeds and elevated torque at launch and low speeds.
The transmission is a light-weight, countershaft gearbox with torque capability as much as 1,200 N·m (885 lb.-ft.) and electrical gearshift actuation that allows producers to make use of smaller, extra environment friendly motors.
Eaton’s 4-speed medium-duty electrified automobile (EV) transmission has fine-pitch helical gears that guarantee easy, low-noise operation and a shifting technique designed to increase vary and battery life.
Eaton’s 4-speed transmission has fine-pitch helical gears that guarantee easy, low-noise operation and a shifting technique designed to increase vary and battery life. Highway exams have proven a 20% to 30% effectivity enchancment in vitality consumption beneath regular driving situations in contrast with a direct-drive transmission and a ten% to fifteen% enchancment in contrast with a present 2-speed resolution.
Eaton has been within the hybrid transmission enterprise for over 15 years, and we now have greater than two billion miles of dependable operation of hybrid transmission-equipped vans and buses on the highway. Our 4-speed transmission gives uncompromised launch-ability on grade and has shift factors to maintain the electrical motor working in its best area whereas drivability and automobile security is taken under consideration.
—Julie Marshaus, supervisor, New Product Introductions, ePowertrain, Eaton’s Car Group
Eaton’s eMobility enterprise was shaped by combining merchandise, experience and international manufacturing capabilities from Eaton’s Electrical and Car Teams. The eMobility product portfolio consists of clever energy electronics, dependable energy distribution and safety options, and environment friendly ePowertrain options for passenger automobile, industrial automobile and off-highway prospects.
