Apparatus and method for estimating a turning characteristic of a vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsMitsutaka Tanimoto, Satoru Ohsaku
Life of this patent
Estimating the term…
Abstract
An apparatus and method for estimating a turning characteristic of a vehicle provided with a controller that performs the following steps are provided. That is, the controller estimates a value corresponding to a standard turning state based on vehicle running data of when the vehicle is turning, estimates a transfer function between the value corresponding to the turning state and a value corresponding to an actual turning state, estimates a turning characteristic of the vehicle based on the transfer function, determines whether the vehicle is in a critical turning state, and the prohibits the estimated turning characteristic from being used when it is determined that the vehicle is in the critical turning state.
Claims34
An apparatus for estimating a turning characteristic of a vehicle, comprising:
- a controller which estimates a value corresponding to a standard turning state based on vehicle running data of when the vehicle is turning, estimates a transfer function between the value corresponding to the standard turning state and a value corresponding to an actual turning state, estimates the turning characteristic of the vehicle based on the transfer function, determines whether the vehicle is in a critical turning state, and prohibits the estimated turning characteristic from being used when it is determined that the vehicle is in the critical turning state.
A method for estimating a turning characteristic of a vehicle, comprising the steps of:
- estimating a value corresponding to a standard turning state based on vehicle running data of when the vehicle is turning;
- estimating a transfer function between the value corresponding to the standard turning state and a value corresponding to an actual turning state;
- estimating the turning characteristic of the vehicle based on the transfer function;
- determining whether the vehicle is in a critical turning state;
- and
- prohibiting the estimated turning characteristic from being used when it is determined that the vehicle is in the critical turning state.
Dependencies are inferred from the claim text.