Vehicle-use power generation control device

• US 20090121689A1
• Filed: 10/16/2008
• Published: 05/14/2009
• Est. Priority Date: 11/09/2007
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Tsuzuki, Tomomi, Kikuchi, Tsukasa
• Granted Patent: US 8,040,112 B2
• Time in Patent Office: Days
• US Class Current: 322/34
• CPC Class Codes: H02J 7/243 with on/off action
• CPC Class Codes: H02P 2101/45 for motor vehicles, e.g. car alternators
• CPC Class Codes: H02P 9/48 Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle H02P9/04 - H02P9/46 take precedence

Abstract

The vehicle-use power generation control device includes a first function of detecting a temperature around a generator mounted on a vehicle, a second function of setting a target control voltage in accordance with the temperature detected by the first function, and a third function of controlling an output voltage of the generator at the target control voltage set by the second function. The second function is configured to determine the target control voltage on the basis of a target power generation voltage defining the target control voltage to be set at a predetermined temperature, and a predetermined gradient of the target control voltage with respect to the temperature detected by the first function.

Claims

1. A vehicle-use power generation control device comprising:

a first function of detecting a temperature around a generator mounted on a vehicle;

a second function of setting a target control voltage in accordance with the temperature detected by the first function; and

a third function of controlling an output voltage of the generator at the target control voltage set by the second function;

wherein the second function is configured to determine the target control voltage on the basis of a target power generation voltage defining the target control voltage to be set at a predetermined temperature, and a predetermined gradient of the target control voltage with respect to the temperature detected by the first function.

2. The vehicle-use power generation control device according to claim 1, wherein the target power generation voltage is set in accordance with an instruction received from an external control device.

3. The vehicle-use power generation control device according to claim 1, wherein the gradient is set in accordance with an instruction received from an external control device.

4. The vehicle-use power generation control device according to claim 3, wherein the gradient is constant with respect to the temperature detected by the first function.

5. The vehicle-use power generation control device according to claim 3, wherein the gradient is varied depending on the temperature detected by the first function.