IP Library Granted Patent US 12,252,212
Granted Patent B2
US 12,252,212 · App. 17/773,408 · Granted Mar 18, 2025

Methods of operating an electric vehicle and electric snowmobile

Inventors: Esa Vaisanen (Rovaniemi, FI); Ioannis Soultanis (Vantaa, FI); Jukka Keranen (Rovaniemi, FI); Ashley Sharp (Helsinki, FI)
Assignee: BOMBARDIER RECREATIONAL PRODUCTS INC.
B62M27/02B62K23/04B62K2204/00
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Quick Facts
Patent No.
US 12,252,212
App. No.
17/773,408
Granted
Mar 18, 2025
Kind
B2
Abstract

A method for operating an electric vehicle has the steps of: determining if at least one of a speed of the vehicle and a speed of an electric motor of the vehicle is zero; in response to the at least one of the speed being zero, determining if a reverse actuator is actuated; in response to the reverse actuator being actuated, starting a timer, then determining if the reverse actuator has been actuated without interruption for a predetermined amount of time; in response to the reverse actuator having been actuated without interruption for the predetermined amount of time, changing an operation mode of the electric motor from one of a forward mode and a reverse mode to another of the forward mode and the reverse mode. An electric snowmobile and other methods for operating an electric vehicle are disclosed.

Claims (46)

1. A method for operating an electric vehicle comprising:

determining if at least one of a speed of the vehicle and a speed of an electric motor of the vehicle is zero;

in response to the at least one of the speed of the vehicle and the speed of the electric motor being zero, determining if a reverse actuator is actuated, the reverse actuator being mounted to a first handle of a handlebar of the vehicle;

in response to the reverse actuator being actuated, starting a timer;

once the timer has started, determining if the reverse actuator has been actuated without interruption for a predetermined amount of time determined by the timer;

in response to the reverse actuator having been actuated without interruption for the predetermined amount of time, changing an operation mode of the electric motor, the operation mode being one of a forward mode and a reverse mode, changing the operation mode of the electric motor comprising:

changing from the forward mode to the reverse mode, in response to the motor being in the forward mode prior to the reverse actuator being actuated; and

changing from the reverse mode to the forward mode, in response to the motor being in the reverse mode prior to the reverse actuator being actuated;

after changing the operation mode, actuating an acceleration input device, the acceleration input device being an acceleration lever mounted to a second handle of the handlebar of the vehicle; and

in response to actuating the acceleration input device, operating the electric motor in the operation mode.

2. The method of claim 1 , further comprising:

in response to the at least one of the speed of the vehicle and the speed of the electric motor being zero, and prior to determining if the reverse actuator is actuated:

determining if the acceleration input device is actuated; and

wherein determining if the reverse actuator is actuated is performed in response to the acceleration input device not being actuated.

3. The method of claim 2 , wherein the predetermined amount of time is a first predetermined amount of time;

further comprising entering an idle mode in response to:

the at least one of the speed of the vehicle and the speed of the electric motor being zero,

the acceleration input device not being actuated, and

the reverse actuator not being actuated,

for a second predetermined amount of time, the second predetermined amount of time being greater than the first predetermined amount of time.

4. The method of claim 1 , wherein the reverse actuator is a button.

5. The method of claim 1 , wherein operating the electric motor in the operation mode in response to actuating the acceleration input device comprises:

determining a position of the acceleration input device using a sensor;

filtering a signal from the sensor to obtain a filtered signal; and

operating the electric motor in the operation mode based on the filtered signal.

6. The method of claim 5 , wherein filtering the signal comprises using a digital filter to enable filtering of unintended variations in the position of the acceleration input device.

7. The method of claim 1 , wherein the at least one of the speed of the vehicle and the speed of the electric motor being zero is the speed of the electric motor being zero.

8. A method for operating an electric vehicle comprising:

actuating a start actuator, the start actuator being mounted to a handlebar of the vehicle;

in response to the start actuator being actuated, starting a timer;

once the timer has reached a predetermined amount of time:

determining if at least one of a speed of the vehicle and a speed of an electric motor of the vehicle is zero; and

determining if an acceleration input device is actuated, the acceleration input device being an acceleration lever mounted to the handlebar of the vehicle;

enabling operation of the electric motor in response to:

the at least one of the speed of the vehicle and the speed of the electric motor being zero; and

the acceleration input device not being actuated;

operation of the electric motor not being enabled unless:

the at least one of the speed of the vehicle and the speed of the electric motor is zero; and

the acceleration input device is not actuated;

in response to the operation of the electric motor being enabled, operating the electric motor in response to actuation of the acceleration input device.

9. The method of claim 8 , wherein operating the electric motor in response to actuation of the acceleration input device comprises:

determining a position of the acceleration input device using a sensor;

filtering a signal from the sensor to obtain a filtered signal; and

operating the electric motor based on the filtered signal.

10. The method of claim 9 , wherein filtering the signal comprises using a digital filter to enable filtering of unintended variations in the position of the acceleration input device.

11. The method of claim 8 , wherein the at least one of the speed of the vehicle and the speed of the electric motor being zero is the speed of the electric motor being zero.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 12, 2022
From: VAISANEN, ESA; SOULTANIS, IOANNIS; KERANEN, JUKKA; SHARP, ASHLEY
To: BOMBARDIER RECREATIONAL PRODUCTS INC.
Reel/Frame 061390/0675 →
Continuity (2)
Provisional Application 62928603 · Oct 31, 2019
Related Publication 20220411018A1 · Dec 29, 2022
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