BMW’s latest electric motorcycle patent shows that the company is hard at work on wireless charging options. And they seem to have come up with a clever option.
BMW’s wireless charging e-moto solution
Electric motorcycles are generally charged just like electric cars. The rider/driver hops off/out of the vehicle and then plugs in a charger cable into a charging socket on the vehicle.
But what if you could eliminate the last step of that process, meaning that charging began as soon as the vehicle parked? That’s been a tricky problem to solve for all types of electric vehicles, but BMW is working on an innovative solution for its electric motorcycles.
If you take a look at the patent drawing below, you’ll see that BMW’s electric motorcycle wireless charging plan includes the only non-rubber component of the bike to touch the ground: the side stand.
BMW has incorporated a wireless charging receiver into the pad at the base of the electric motorcycle’s side stand. When the rider parks his or her electric motorcycle, the side stand’s pad would land on the wireless charger (which houses an AC coil). Wireless charging power is correlated to the distance between the charger and receiver, and thus works best when the two are in nearly direct contact. BMW’s wireless electric motorcycle system seems to do just that.
It’s hard to say how quickly the system would be able to charge. Most electric motorcycles are capable of either Level 1 or Level 2 charging. The former often takes all night while the latter can often be done in a few hours. Such wireless charging would likely be closer to Level 1 charge levels, thus resulting in more of a trickle charge. Some electric motorcycles such as the Harley-Davidson LiveWire and the Lightning Strike are capable of DC fast charging that can nearly top off the battery in around 40 minutes. However, it is unlikely that BMWs wireless electric motorcycle charging system could reach those charging speeds anytime soon.
This is just the latest in a string of electric motorcycle patents coming out of BMW’s R&D center.