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US 2020/0208737 A1Published application
Electronic control of a transmission
AssigneePolaris Industries Inc.
InventorsMatthew P. McGuire, Cole A. Sytsma, Brian D. Krosschell
Life of this patent
Estimating the term…
Abstract
A recreational vehicle is provided including a power source, such as an engine or an electric motor, and a transmission having a variable gear ratio. A sub-transmission coupled to an output of the transmission includes a plurality of selectable gear configurations including park gear and at least one of a forward gear, a neutral gear and a reverse gear. An electronic controller is operative to electronically control the gear configuration of the sub-transmission in response to a set of conditions.
Claims21
A recreational vehicle including:
- a chassis;
- a ground engaging member configured to support the chassis;
- a power source supported by the chassis, the power source including at least one of an engine and an electric motor;
- an ignition in communication with the power source and the ignition having an on-state and an off-state;
- a transmission driven by the power source;
- a sub-transmission coupled to the transmission, the sub-transmission having a plurality of selectable gear settings including a park gear setting and at least one of a forward gear setting, a reverse gear setting and a neutral gear setting;
- an actuator operative to change the gear setting of the sub-transmission;
- a shifter including a signal output operative to provide a shift request signal indicative of a request to change the gear setting of the sub-transmission;
- at least one sensor configured to detect at least one first speed value selected from a group of a ground speed of the vehicle and a speed of a component of the vehicle;
- and
- a controller including a processor, the controller being in communication with the actuator, the at least one sensor, and the shifter, wherein the controller controls the actuator to set the gear setting to the park gear setting in response to a first set of park condition signals, wherein the first set of park condition signals comprise:
- the ignition being in the off-state, the sub-transmission having a gear setting other than the park gear setting and the at least one sensor indicating that the first speed value is at or below a threshold.
9 more elements
A recreational vehicle including:
- a chassis;
- a ground engaging member configured to support the chassis;
- a power source supported by the chassis, the power source including at least one of an engine and an electric motor;
- an ignition in communication with the power source and the ignition having an on-state and an off-state;
- a transmission driven by the power source;
- a sub-transmission coupled to the transmission, the sub-transmission having a plurality of selectable gear settings including a park gear setting and at least one of a forward gear setting, a reverse gear setting and a neutral gear setting;
- an actuator operative to change the gear setting of the sub-transmission;
- a shifter including a signal output operative to provide a shift request signal indicative of a request to change the gear setting of the sub-transmission;
- at least one sensor configured to detect a first speed value selected from a group of a ground speed of the vehicle and a speed of a component of the vehicle;
- and
- a controller including a processor, the controller being in communication with the actuator, the at least one sensor, and the shifter, wherein the controller controls the actuator to set the gear setting of the sub-transmission to a requested gear setting in response to a shift request for the requested gear setting when a first set of shift conditions are satisfied and wherein the controller controls the actuator to cause the gear setting to remain in a current gear setting in response to a shift request for the requested gear setting when the first set of shift conditions are not satisfied, wherein the first set of shift conditions comprise:
- the first speed value detected by the at least one sensor being within a defined range, when the controller causes the gear setting to remain a current gear due to the first set of shift conditions not being satisfied, the vehicle continues to monitor the first set of shift conditions and upon the first set of shift conditions being met, the controller instructs setting the gear setting of the sub-transmission to the requested gear setting without requiring reception of an additional shift request signal for the requested gear setting.
9 more elements
A recreational vehicle including:
- a chassis;
- a ground engaging member configured to support the chassis;
- a power source supported by the chassis, the power source including at least one of an engine and an electric motor;
- a transmission being driven by the power source;
- a sub-transmission coupled to the transmission, the sub-transmission having a plurality of selectable gear configurations including at least one of a park gear setting, a forward gear setting, a reverse gear setting and a neutral gear setting;
- a sub-transmission actuator operative to change a gear setting of the sub-transmission;
- a shifter including a signal output operative to provide a shift request signal indicative of a shift request to change the gear configuration of the sub-transmission;
- a user interface comprising a plurality of selectable operating modes;
- and
- a controller including a processor, the controller being in communication with the sub-transmission actuator and the interface, wherein the controller, when a first mode is selected via the interface, prevents the sub-transmission from being placed in a first gear setting when a shift request signal that requests the first gear setting is received.
7 more elements
-46. (canceled)
Dependencies are inferred from the claim text.