Engine controller and control method
First Claim
1. An engine speed controller provided to a vehicle energy control system that includes an engine controller, a generator controller, and an auxiliary device controller, the engine controller controlling an engine, which drives a generator, an auxiliary device, and a vehicle, the generator generating electricity and supplying the electricity to a battery and a plurality of current consumers, the generator controller controlling the generator, the auxiliary device controller controlling the auxiliary device, the engine speed controller performing a feedback control such that engine speed substantially coincides at a target value, the engine speed controller comprising:
- an electric power generation calculation unit that calculates one of a requested power generation and a present power generation of the generator; and
an engine speed changing unit that evaluates tendency of power generation on the basis of the one of the requested power generation and the present power generation, wherein the engine speed changing unit requests increase in the engine speed when the engine speed changing unit determines the power generation to be inclined toward shortage, and the engine speed changing unit requests decrease in the engine speed when the engine speed changing unit determines the power generation to be inclined toward excess.
1 Assignment
0 Petitions
Accused Products
Abstract
An engine controller controls an engine, which drives a generator, an auxiliary device, and a vehicle. The generator generates electricity, and supplying the electricity to a battery and a plurality of current consumers. A generator controller controls the generator. An auxiliary device controller controls the auxiliary device. An electric power generation calculation unit calculates one of a requested power generation of the generator and a present power generation of the generator. An engine speed changing unit evaluates tendency of power generation on the basis of the one of the requested power generation and the present power generation. The engine speed changing unit requests increase or decreases in the engine speed when the engine speed changing unit determines the power generation to be inclined toward shortage or excess.
27 Citations
40 Claims
-
1. An engine speed controller provided to a vehicle energy control system that includes an engine controller, a generator controller, and an auxiliary device controller, the engine controller controlling an engine, which drives a generator, an auxiliary device, and a vehicle, the generator generating electricity and supplying the electricity to a battery and a plurality of current consumers, the generator controller controlling the generator, the auxiliary device controller controlling the auxiliary device, the engine speed controller performing a feedback control such that engine speed substantially coincides at a target value,
the engine speed controller comprising: -
an electric power generation calculation unit that calculates one of a requested power generation and a present power generation of the generator; and
an engine speed changing unit that evaluates tendency of power generation on the basis of the one of the requested power generation and the present power generation, wherein the engine speed changing unit requests increase in the engine speed when the engine speed changing unit determines the power generation to be inclined toward shortage, and the engine speed changing unit requests decrease in the engine speed when the engine speed changing unit determines the power generation to be inclined toward excess. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An engine speed controller provided to a vehicle energy control system that includes an engine controller, a generator controller, and an auxiliary device controller, the engine controller controlling an engine, which drives a generator, an auxiliary device, and a vehicle, the generator generating electricity and supplying the electricity to a battery and a plurality of current consumers, the generator controller controlling the generator, the auxiliary device controller controlling the auxiliary device, the engine speed controller performing a feedback control such that engine speed substantially coincides at a target value,
the engine speed controller comprising: -
an engine torque calculation unit that calculates one of a requested engine torque and a present engine torque of the engine; and
an engine speed changing unit that evaluates tendency of engine torque on the basis of the one of the requested engine torque and the present engine torque, wherein the engine speed changing unit requests increase in the engine speed when the engine speed changing unit determines the engine torque to be inclined toward shortage, and the engine speed changing unit requests decrease in the engine speed when the engine speed changing unit determines the engine torque to be inclined toward excess. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
-
21. A control method comprising:
-
calculating one of a requested power generation and a present power generation performed using a generator driven by an engine for generating electricity;
evaluating tendency of power generation on the basis of the one of the requested power generation and the present power generation;
requesting increase in the engine speed when determining the power generation to be inclined toward shortage;
requesting decrease in the engine speed when determining the power generation to be inclined toward excess; and
operating the engine speed in accordance with the request of the engine speed. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
-
-
34. A control method comprising:
-
calculating one of a requested engine torque and a present engine torque of an engine that drives a generator for generating electricity;
evaluating tendency of engine torque on the basis of the one of the requested engine torque and the present engine torque;
requesting increase in the engine speed when determining the engine torque to be inclined toward shortage;
requesting decrease in the engine speed when determining the engine torque to be inclined toward excess; and
operating the engine speed in accordance with the request of the engine speed. - View Dependent Claims (35, 36, 37, 38, 39, 40)
-
Specification