BMW has begun gasoline cell system manufacturing on the firm’s competence heart for hydrogen in Munich. A small collection of BMW iX5 Hydrogen vehicles can be getting into service world wide from the top of this yr for check and demonstration functions. The BMW Group sources the person gasoline cells required for manufacturing the BMW iX5 Hydrogen from the Toyota Motor Company. The 2 firms have been collaborating on gasoline cell drive programs since 2013.
As a flexible power supply, hydrogen has a key function to play on the street to local weather neutrality. And it’ll additionally acquire considerably in significance so far as private mobility is worried. We predict hydrogen-powered automobiles are ideally positioned technologically to suit alongside battery-electric automobiles and full the electrical mobility image.
By commencing small-scale manufacturing of gasoline cells in the present day, we’re demonstrating the technical maturity of such a drive system and underscoring its potential for the longer term.
—Oliver Zipse, Chairman of the Board of Administration of BMW AG
Our a few years of analysis and growth work have enabled us to get the very most out of hydrogen expertise. Now we have managed to greater than double the gasoline cell’s steady output within the second-generation gasoline cell within the BMW iX5 Hydrogen, whereas weight and measurement have each decreased drastically.
—Frank Weber, Member of the Board of Administration of BMW AG, Growth
The gasoline cell system generates a excessive steady output of 125 kW/170 hp. It groups up with an electrical motor that includes fifth-generation BMW eDrive expertise and a high-performance battery function developed for this car to allow its powertrain to ship 275 kW/374 hp.
The event staff included the drive system—comprising two hydrogen tanks, the gasoline cell and the electrical motor—into the present BMW X5 platform for the small manufacturing run. The BMW iX5 Hydrogen already efficiently demonstrated its wonderful on a regular basis usability, even at very low temperatures, through the closing spherical of winter testing in Sweden at the beginning of this yr.
The BMW Group has expertise with using hydrogen as a drive expertise. Hydrogen-powered combustion engines had already been in use previous to the arrival of the gasoline cell system. Effectivity issues prompted the BMW Group to proceed growth work on this space from 2015 with the BMW 5 Collection GT Hydrogen Cell based mostly on gasoline cell expertise.
Gas cell programs are manufactured in two principal steps. The person gasoline cells are first assembled right into a gasoline cell stack. The subsequent step includes becoming all the opposite elements to supply an entire gasoline cell system.
Stacking of the gasoline cells is a totally automated course of. As soon as the person elements have been inspected for any injury, the stack is compressed by machine with a pressure of 5 tonnes and positioned in a housing. The stack housing is manufactured within the mild steel foundry at BMW Group Plant Landshut utilizing a sand casting approach.
For this, molten aluminum is poured right into a mould made out of compacted sand combined with resin in a course of specifically designed for this small-series car. The stress plate, which delivers hydrogen and oxygen to the gasoline cell stack, is made out of solid plastic elements and light-alloy castings, additionally from the Landshut plant. The stress plate types a gas-tight and water-tight seal across the stack housing.
Remaining meeting of the #gasoline cell stacks features a voltage check together with intensive testing of the chemical response inside the cells. Lastly, all of the completely different elements are fitted collectively within the meeting space to supply the entire system. Throughout this method meeting stage, additional elements are fitted, such because the compressor, the anode and cathode, the high-voltage coolant pump and the wiring harness.