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US 12,384,214 B2Granted
Vehicle having adjustable compression and rebound damping
AssigneePolaris Industries Inc.
InventorsJonathon P. Graus, David D. Helgeson, Alex R. Scheuerell
Life of this patent
Estimating the term…
Abstract
A damping control system for a vehicle having a suspension located between a plurality of ground engaging members and a vehicle frame are disclosed. The vehicle including at least one adjustable shock absorber having an adjustable damping characteristic.
Claims36
A recreational vehicle, comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- at least one sensor positioned on the recreational vehicle and configured to provide sensor information to a controller, the at least one sensor comprises an acceleration sensor and the sensor information comprises acceleration information indicating a lateral acceleration value;
- and
- the controller operatively coupled to the at least one sensor and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the at least one sensor, the sensor information;
- determine, based on a comparison of the lateral acceleration value to a first threshold, a cornering event corresponding to the recreational vehicle executing a turn;
- and
- provide, to at least one of the plurality of adjustable shock absorbers and based on the determining of the cornering event, one or more commands to result in a decrease of a damping characteristic of the at least one of the plurality of adjustable shock absorbers.
7 more elements
A recreational vehicle comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- a first sensor positioned on the recreational vehicle and configured to provide cornering information to a controller;
- and
- a second sensor positioned on the recreational vehicle and configured to provide acceleration information to the controller;
- the controller operatively coupled to the first sensor, the second sensor, and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the first sensor, the cornering information;
- receive, from the second sensor, the acceleration information;
- determine, based on the cornering information, a cornering event corresponding to the recreational vehicle executing a turn;
- determine, based on the acceleration information indicating a longitudinal deceleration, that the recreational vehicle is entering the turn;
- provide, to the at least one of the plurality of adjustable shock absorbers and based on the cornering event and the position of the recreational vehicle during the turn, one or more commands to result in an adjustment of a damping characteristic of the at least one of the plurality of adjustable shock absorbers;
- determine, based on the cornering event, a plurality of damping characteristics for the plurality of adjustable shock absorbers;
- bias, based on the determining that the vehicle is entering the turn, the plurality of damping characteristics;
- and
- generate the one or more commands based on the plurality of biased damping characteristics.
13 more elements
A recreational vehicle, comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- at least one sensor positioned on the recreational vehicle and configured to provide sensor information to a controller, and the sensor information comprises yaw rate information indicate a yaw rate and steering information indicating a steering position or a steering rate;
- and
- the controller operatively coupled to the at least one sensor and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the at least one sensor, the sensor information;
- determine, based on the sensor information, a cornering event corresponding to the recreational vehicle executing a turn;
- provide, to at least one of the plurality of adjustable shock absorbers and based on the determining of the cornering event, one or more commands to result in a decrease of a damping characteristic of the at least one of the plurality of adjustable shock absorbers;
- and
- prioritize the yaw rate information over the steering information such that the controller is configured to determine the vehicle is executing the turn in a first direction based on the yaw rate indicating the turn in the first direction and even if the steering position or the steering rate indicates the turn in a second direction or does not indicate the turn.
8 more elements
A recreational vehicle, comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- at least one sensor positioned on the recreational vehicle and configured to provide sensor information to a controller, and the sensor information comprises acceleration information indicating a lateral acceleration value and yaw rate information indicating a yaw rate;
- and
- the controller operatively coupled to the at least one sensor and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the at least one sensor, the sensor information;
- determine, based on the sensor information, a cornering event corresponding to the recreational vehicle executing a turn;
- provide, to at least one of the plurality of adjustable shock absorbers and based on the determining of the cornering event, one or more commands to result in a decrease of a damping characteristic of the at least one of the plurality of adjustable shock absorbers;
- and
- prioritize the acceleration information over the yaw rate information such that the controller is configured to determine the vehicle is executing the turn in a first direction based on the lateral acceleration value indicating the turn in the first direction and even if the yaw rate indicates the turn in a second direction or does not indicate the turn.
8 more elements
A recreational vehicle, comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- at least one sensor positioned on the recreational vehicle and configured to provide sensor information to a controller, and the sensor information comprises steering information indicating a steering position or a steering rate and acceleration information indicating a lateral acceleration value;
- and
- the controller operatively coupled to the at least one sensor and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the at least one sensor, the sensor information;
- determine, based on the sensor information, a cornering event corresponding to the recreational vehicle executing a turn;
- provide, to at least one of the plurality of adjustable shock absorbers and based on the determining of the cornering event, one or more commands to result in a decrease of a damping characteristic of the at least one of the plurality of adjustable shock absorbers, and
- prioritize the acceleration information over the steering information such that the controller is configured to determine the vehicle is executing the turn in a first direction based on the lateral acceleration value indicating the turn in the first direction and even if the steering position or the steering rate indicates the turn in a second direction or does not indicate the turn.
7 more elements
A recreational vehicle comprising:
- a plurality of ground engaging members;
- a frame supported by the plurality of ground engaging members;
- a plurality of suspensions, wherein each of the plurality of suspensions couples a ground engaging member, from the plurality of ground engaging members, to the frame, wherein the plurality of suspensions includes a plurality of adjustable shock absorbers;
- a first sensor positioned on the recreational vehicle and configured to provide cornering information to a controller;
- and
- a second sensor positioned on the recreational vehicle and configured to provide acceleration information to the controller;
- the controller operatively coupled to the first sensor, the second sensor, and the plurality of adjustable shock absorbers, wherein the controller is configured to:
- receive, from the first sensor, the cornering information;
- receive, from the second sensor, the acceleration information;
- determine, based on the cornering information, a cornering event corresponding to the recreational vehicle executing a turn;
- determine, based on the acceleration information indicating a longitudinal acceleration, that the recreational vehicle is exiting the turn;
- provide, to the at least one of the plurality of adjustable shock absorbers and based on the cornering event and the position of the recreational vehicle during the turn, one or more commands to result in an adjustment of a damping characteristic of the at least one of the plurality of adjustable shock absorbers;
- determine, based on the cornering event, a plurality of damping characteristics for the plurality of adjustable shock absorbers;
- bias, based on the determining that the vehicle is exiting the turn, the plurality of damping characteristics;
- and
- generate the one or more commands based on the plurality of biased damping characteristics.
13 more elements
Dependencies are inferred from the claim text.