A method for accelerating a vehicle from rest, including controlling an engine according to a first control strategy; receiving a mode indication selecting a launch control mode for accelerating; controlling the engine according to a second control strategy; in response to greater than zero accelerator position, controlling to increase throttle valve opening and engine control operational conditions to limit engine torque output; while in the second control strategy, receiving an indication to end control by the second control strategy; and in response to indication, controlling according to the first control strategy causing the vehicle to accelerate from rest, the first acceleration rate greater than the second rate corresponding to accelerating from rest after sequentially controlling according to the first and second control strategies; the second acceleration rate corresponding to accelerating from rest by controlling according to the first control strategy without previously controlling according to the second control strategy.

A recreational vehicle braking system having a tether system, a controller system, and a brake. The controller system activates a slowdown timer upon removal of the tether system from the vehicle and then activates a stop timer upon expiration of the slowdown timer.

A heat exchanger assembly has a front portion, a middle portion rearward of the front portion, a rear portion rearward of the middle portion, a top part and a bottom part disposed below the top part. At least one of the front and rear portions is curved from the middle portion. The at least one of the front and rear portions extends below the middle portion. The bottom part is joined to the top part. At least one of the top and bottom parts defines a recess. The top and bottom parts define therebetween a passage formed in part by the recess. A width of the passage varies along a length of the heat exchanger assembly. The passage has an inlet and an outlet. A snowmobile with a heat exchanger assembly and a method of manufacturing a heat exchanger assembly are also disclosed.

A cooling system for an internal portion of an engine assembly. The cooling system includes a fan assembly. The fan assembly rotates with a flywheel mounted to a crankshaft.

A stackable container assembly is disclosed, the assembly having a base container having a container body having a top surface and a bottom surface, an attachment base adapted for connecting the base container to a vehicle, and a fixture assembly attached to the top surface; and an accessory container having an accessory body having an accessory bottom surface, and an accessory base on the accessory bottom surface selectively connecting the accessory container to the fixture assembly of the base container such that the accessory container is stacked on top of the base container. A container and a vehicle provided with the stackable container assembly are also disclosed.

A system method for detecting taillight signals of a vehicle using a convolutional neural network is disclosed. A particular embodiment includes: receiving a plurality of images from one or more image-generating devices; generating a frame for each of the plurality of images; generating a ground truth, wherein the ground truth includes a labeled image with one of the following taillight status conditions for a right or left taillight signal of the vehicle: (1) an invisible right or left taillight signal, (2) a visible but not illuminated right or left taillight signal, and (3) a visible and illuminated right or left taillight signal; creating a first dataset including the labeled images corresponding to the plurality of images, the labeled images including one or more of the taillight status conditions of the right or left taillight signal; and creating a second dataset including at least one pair of portions of the plurality of images, wherein the at least one pair of portions of the plurality of the images are in temporal succession.

An adjustable clamping mechanism for a throttle control device on a handlebar of a vehicle includes a throttle lever and a clamp assembly that retains the throttle control device at a desired angular position upon said handlebar. The clamp assembly includes a body having a main section and a secondary section, the secondary section being disposed in a slot of the main section. A clamping member provides a clamping force upon the main section and secondary section. In an engaged position of the clamping member, the clamping member provides a clamping force to retain the throttle lever in a predetermined angular orientation upon said handlebar during operation of said vehicle. In a disengaged position of the clamping member, the clamping member does not provide the clamping force in order to permit the throttle lever to rotate about a longitudinal axis of said handlebar.

A heat exchanger assembly has: a front portion; a middle portion rearward of the front portion; a rear portion rearward of the middle portion, at least one of the front and rear portions being curved from the middle portion, the at least one of the front and rear portions extending below the middle portion; a top part, the top part defining at least one top recess; and a bottom part disposed below the top part and being joined to the top part, the bottom part defining at least one bottom recess. The top and bottom parts define therebetween a passage formed in part by the at least one top recess and the at least one bottom recess. The passage has an inlet and an outlet. A snowmobile having the heat exchanger assembly is also disclosed.

Methods and systems for activating electric vehicles are provided. One method includes, in response to a first command to activate the vehicle, transitioning the vehicle from an inactive state to a wake state where a controller of the vehicle is activated and the vehicle is prevented from being propelled by an electric motor of the vehicle. The method also includes, in response to receiving a second command to activate the vehicle after receiving the first command, transitioning the vehicle from the wake state to a ready state where the vehicle is permitted to be propelled by the electric motor.

In one aspect, responsive to determining that an electric vehicle is connected to an external power source, an operator interface of the electric vehicle is enabled to command a headlight of the electric vehicle into an off condition. Responsive to determining that the electric vehicle is disconnected from the external power source and that the electric motor of the electric vehicle is powered, the headlight of the electric vehicle is maintained in an on condition, and the operator interface from commanding the headlight into the off condition is disabled. In another aspect, an electric vehicle headlight may be rendered non-deactivatable when an accelerator of the electric vehicle is enabled, and the headlight may be rendered deactivatable when an accelerator of the electric vehicle is disabled.