Automotive Products

ECU for Fuel Cell Power Generation Control


Fuel cell vehicles use hydrogen as fuel. They produce electricity and water by mixing hydrogen gas and oxygen in the cell stack, and that electricity is used as energy to power the car.The balance between hydrogen gas and oxygen has to be properly maintained so that the fuel cell can produce electricity safely and efficiently. This ECU is used to regulates such a balance.

The Keihin Advantage

Compact and lightweight
This ECU integrates the functions of both the fuel cell device ECU and the power generation ECU to achieve size and weight reductions of about 40% over the combination of conventional devices.

Heat dissipation
The unit utilizes grease-based heat dissipation technology (which prevents the substrate from coming into direct contact with the housing) and heat radiation fins to increase heat dissipation performance by about 70% over conventional products, lowering the overall temperature of the ECU.

The unit conforms to functional safety standard ISO26262 for safe power generation control.

Reliable EMC design
Electromagnetic compatibility (EMC) design conforming to the target vehicle is conducted to reduce the generation of electrical noise from the ECU while also protecting the unit from outside electrical noise.

Power generation control technology for fuel cell stacks
This technology collects information from various sensors and uses it to calculate the ideal amount of power for the fuel cells to generate, and then controls hydrogen and oxygen supply in order to control the amount of electricity produced.

Customer Benefits

・Integrated functionality results in a smaller, lighter design that improves electricity consumption performance while ensuring safety.

・Keeping heat production down allows for more layout flexibility, including within the engine compartment.

Production Bases

japan Miyagi Plant