System and method for selecting a driveline gear ratio
First Claim
1. A method for selecting a gear ratio of a vehicle driveline, comprising:
- gathering information relating to one or more parameters associated with the vehicle, the information comprising information relating to the nature of a terrain over which the vehicle is traveling;
anticipating, based on the gathered information, an occurrence of an event relating to the vehicle for which a change in driveline gear ratio is needed;
identifying a suitable driveline gear ratio for the anticipated event;
generating a command signal representative of a request to change the gear ratio of the driveline to the identified gear ratio; and
communicating the command signal to a driveline subsystem of the vehicle,the method further comprising ignoring or suspending generation of the command signal representative of a request to change the gear ratio in dependence on the current or expected amount of load on the driveline and a roughness of a ground surface of the terrain over which the vehicle is travelling.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for selecting a gear ratio for a driveline of vehicle is provided. The method comprises gathering information relating to one or more parameters associated with the vehicle and anticipating, based on the gathered information, an occurrence of an event relating to the vehicle for which a change in driveline gear ratio is needed. The method further comprises identifying a suitable driveline gear ratio for the anticipated event, generating a command signal representative of a request to change the gear ratio of the driveline to the identified gear ratio, and communicating the command signal to a driveline subsystem of the vehicle. A system comprising an electronic control unit configured to perform the method is also provided.
70 Citations
21 Claims
-
1. A method for selecting a gear ratio of a vehicle driveline, comprising:
-
gathering information relating to one or more parameters associated with the vehicle, the information comprising information relating to the nature of a terrain over which the vehicle is traveling; anticipating, based on the gathered information, an occurrence of an event relating to the vehicle for which a change in driveline gear ratio is needed; identifying a suitable driveline gear ratio for the anticipated event; generating a command signal representative of a request to change the gear ratio of the driveline to the identified gear ratio; and communicating the command signal to a driveline subsystem of the vehicle, the method further comprising ignoring or suspending generation of the command signal representative of a request to change the gear ratio in dependence on the current or expected amount of load on the driveline and a roughness of a ground surface of the terrain over which the vehicle is travelling. - View Dependent Claims (2, 3, 4, 5, 6, 18, 19, 20, 21)
-
-
7. A method for selecting a gear ratio for a driveline of a vehicle, comprising:
-
gathering information relating to one or more parameters associated with the vehicle, the information comprising information relating to the nature of a terrain over which the vehicle is traveling; predicting, based on the gathered information, a need for a change in the gear ratio of the driveline from a current first gear ratio to a second gear ratio; and effecting the change to the driveline gear ratio to the second gear ratio in response to the predicted need to do so; the method further comprising not effecting the change to the driveline gear ratio in dependence on the current or expected amount of load on the driveline and a roughness of a ground surface of the terrain over which the vehicle is travelling. - View Dependent Claims (8, 9, 10)
-
-
11. A system for selecting a gear ratio for a driveline of a vehicle, comprising:
an electronic control unit, configured to; receive information relating to one or more parameters associated with the vehicle, the information comprising information relating to a terrain over which the vehicle is traveling; predict, based on the gathered information, a need for a change in the gear ratio of the driveline from a current first gear ratio to a second gear ratio; and effect the change in the driveline gear ratio to the second gear ratio in response to the predicted need to do so; the electronic control unit being further configured not to effect the change in the driveline gear ratio in dependence on the current or expected amount of load on the driveline and a roughness of a ground surface of the terrain over which the vehicle is travelling. - View Dependent Claims (12, 13, 14, 15, 16, 17)
Specification