Apparatus and method for pre-heating an engine of mild hybrid vehicle
AssigneeHyundai Motor Company
InventorHwa Yong Jang
Life of this patent
Estimating the term…
Abstract
An apparatus and a method for pre-heating an engine of a mild hybrid vehicle are provided, and the apparatus includes: a pre-heating plug pre-heating the engine; a pre-heating controller recognizing the mild hybrid vehicle based on vehicle driving information, determining whether the mild hybrid vehicle enters a coasting driving mode based on the vehicle driving information, and generating a duty control signal according to a coasting driving time when the mild hybrid vehicle is driven in the coasting driving mode; and a driver supplying electrical energy of the low-voltage battery to the pre-heating plug according to the generated duty control signal.
Claims13
An apparatus for pre-heating an engine of a hybrid vehicle, the apparatus comprising:
- a pre-heating plug pre-heating the engine;
- a pre-heating controller recognizing the hybrid vehicle based on vehicle driving information, determining whether the hybrid vehicle enters a coasting driving mode based on the vehicle driving information, and generating a duty control signal having a pre-heating time set differently depending on a coasting driving time when the hybrid vehicle is driven in the coasting driving mode;
- and
- a driver supplying electrical energy of a low-voltage battery to the pre-heating plug according to the generated duty control signal,
- wherein the pre-heating controller controls the pre-heating time to be longer as the coasting driving time increases, and controls the pre-heating time to be shorter as the coasting driving time decreases.
A method for pre-heating an engine of a hybrid vehicle, the method comprising:
- collecting vehicle driving information;
- recognizing the hybrid vehicle based on the vehicle driving information;
- determining whether the hybrid vehicle enters a coasting driving mode based on the vehicle driving information;
- detecting a coasting driving time when the hybrid vehicle enters the coasting driving mode;
- generating a duty control signal for controlling a pre-heating time set differently depending on the coasting driving time;
- and
- supplying electrical energy of the low-voltage battery to a pre-heating plug according to the generated duty control signal,
- wherein the pre-heating controller controls the pre-heating time to be longer as the coasting driving time increases, and controls the pre-heating time to be shorter as the coasting driving time decreases.
Dependencies are inferred from the claim text.