Electric cars – regardless of an extended historical past of properly over 100 years – nonetheless have great potential for enhancements apart from the batteries – just because beforehand nobody had a multi-billion greenback curiosity in creating new options and refining current ones.

The lately unveiled, and really promising, Hyundai Motor Group Electric – Global Modular Platform (E-GMP) is a transparent instance of that. Let’s speak concerning the dual-motor all-wheel-drive system developed by the corporate.

At first sight, the E-GMP is like many different platforms – one motor for the rear axle, and one other one for the entrance axle. It provides all-wheel-drive with unbiased management of every axle.

The entry-level fashions constructed on the E-GMP can be single-motor RWD, whereas the remainder can be dual-motor AWD (no front-wheel-drive possibility).

Within the AWD model, the rear motor is the first one, accountable for many of the work, whereas the entrance motor is powered solely when wanted. Each motors are linked to the wheels by a person single-speed transmission.

The brand new factor is that the entrance motor might be bodily disconnected from the wheels by an EV transmission disconnector. The thought is to maintain the entrance motor disconnected to enhance effectivity in most driving situations.

“The all-wheel-drive system consists of an EV transmission disconnector, which might management the connection between the extra motor and entrance wheels, and swap between two-wheel and all-wheel drive modes to boost effectivity by providing the perfect stage of energy or efficiency for present driving situations.”

Hyundai doesn’t clarify how a lot it can enhance the effectivity and vary, however we assume it have to be noticeable if the corporate included it within the design. Possibly a number of %, like 2-3% on the freeway (in comparison with the mounted AWD)?

The rationale behind disconnecting the entrance motor is to get rid of the losses of an idle (not powered) electrical motor with a everlasting magnet rotor, which sadly most likely has additionally some torque ripples.

We do not know the small print of how the electronics will management this new characteristic – whether or not there can be a “vary mode” that retains the entrance motor disconnected utterly, a “sport mode” to interact it completely and/or a “versatile mode” to join/disconnected relying on situations?

The versatile mode would interact the entrance motor for heavy acceleration, troublesome driving situations or regenerative braking.

One factor is certain, we live at instances when engineers engaged on EVs might be very artistic and discover new issues. Within the inside combustion engine world, issues are mainly set and you may’t do a lot.

Time will inform whether or not different producers additionally introduce an identical resolution of their BEV platforms.

E-GMP – Entrance Traction Motor

The rear transmission doesn’t have this characteristic:

E-GMP – Rear Traction Motor