Abstract: Systems and methods are provided to allow a temporary power boost beyond a restricted power output associated with a restricted operating mode of an electric vehicle to be provided to accommodate challenging operating conditions. A method includes, when the electric vehicle is in the restricted operating mode, receiving an operator propulsion command equal to or exceeding a propulsion command threshold. The powertrain of the electric vehicle is commanded to generate a first power output corresponding to the operator propulsion command where the first power output is lower than or equal to the restricted power output. When the operator propulsion command is equal to or exceeding the propulsion command threshold and the actual speed of the electric vehicle is below a speed threshold, the powertrain of the electric vehicle is commanded to generate a second power output exceeding the restricted power output in response to the operator propulsion command.

Abstract: An electric vehicle including an electric motor and a battery system to provide electrical power to the electric motor. A first input device, when actuated, provides a first input representing a command to propel the electric vehicle. A second input device, when actuated, provides a second input for initiating a boost operating mode. A controller is operative to control a permitted rate of change of a selected operating parameter of the electric motor. The controller, in a normal operating mode, operates the electric motor according to a first rate of change for the selected operating parameter in response to the first input, and in a boost operating mode, operates the electric motor according to a second rate of change, greater than the first, for the selected operating parameter for a limited period of time in response to the first input.

Abstract: One example provides a chassis for an electric snowmobile including a battery pack. The battery pack includes a battery pack housing defining an enclosure for housing a number of battery modules for powering an electric motor of the electric snowmobile, the battery pack housing having a length extending in a longitudinal direction of the snowmobile, the battery pack housing including a bottom surface. A pair of opposing side panels extends downwardly from and along at least a portion of the length of the battery pack housing, the opposing panels and at least portions of the bottom surface of the battery pack housing together forming a rear structure extending in the longitudinal direction of the electric snowmobile.