The Kubota V3307 Micro-Hybrid Engine is designed for heavy machinery and construction equipment with high load demands. This four-cylinder engine has a straightforward design with three main components: a DC converter, a lithium-ion battery and a motor generator attached to the existing engine model.
The engine provides power assistance during peak performance, using electric power to compensate for high loads instantaneously. For some applications, high load is required for only a fraction of the total work time. The engine’s 10-kW electric motor-assist function allows customers to match those high load demands and select an engine with an output power tailored to the low and medium load regions of frequent use.
The solution is equipped with a 48V motor generator, providing high torque with active response. At low speeds, the motor provides up to 70 N⋅m of torque assistance. The V3307 is controlled by the engine control unit (ECU), not big signals from the vehicle. This is made possible by rewriting the software in the existing ECU. No additional ECU is required for hybrid control.
