ON-VEHICLE POWER GENERATION CONTROLLER

• US 20090218889A1
• Filed: 07/11/2008
• Published: 09/03/2009
• Est. Priority Date: 03/03/2008
• Status: Active Grant

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: KOUWA, Tatsuki
• Granted Patent: US 8,004,110 B2
• Time in Patent Office: Days
• US Class Current: 307/84
• CPC Class Codes: H02J 7/1423 with multiple batteries
• CPC Class Codes: H02J 7/143 with multiple generators
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

Provided is an on-vehicle power generation controller capable of uniformly maintaining balance of electric power generated by a plurality of generators, and also capable of realizing a less expensive controller structure. The on-vehicle power generation controller includes a controller (3) which adjusts a generated voltage to a predetermined voltage by controlling turning on and off of a field current so as to control an electric power generating operation of a generator. In a case where at least two on-vehicle power generation controllers are mounted with respect to a single engine, when respective generators (1a, 1b) corresponding to the at least two on-vehicle power generation controllers are operated at the same time, each of second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators (1a, 1b) based upon a field current on-off control signal output in a first on-vehicle power generation controller.

Claims

1. An on-vehicle power generation controller comprising a controller for adjusting a generated voltage to a predetermined voltage by controlling turning on and off of a field current so as to control an electric power generating operation of a generator,

wherein, in a case where at least two on-vehicle power generation controllers are mounted with respect to a single engine, when respective generators corresponding to the at least two on-vehicle power generation controllers are operated at the same time, each of second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators based upon a field current on-off control signal output in a first on-vehicle power generation controller.

2. The on-vehicle power generation controller according to claim 1,

wherein each of the second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators by employing the field current on-off control signal output in the first on-vehicle power generation controller as an initiation signal.

3. The on-vehicle power generation controller according to claim 1,

wherein an “

n-th”

(“

n”

being integer of at least

     2) on-vehicle power generation controller which corresponds to any one of the second and succeeding on-vehicle power generation controllers controls the electric power generating operation of each of the respective generators by employing the field current on-off control signal output in an (n−

1)-th on-vehicle power generation controller provided at a preceding stage thereof as an initiation signal.

4. The on-vehicle power generation controller according to claim 1,

wherein the first on-vehicle power generation controller comprises a voltage-adjusting monitor function, and calculates the field current on-off control signal output based upon the voltage-adjusting monitor function, and

wherein each of the second and succeeding on-vehicle power generation controllers is free from the voltage-adjusting monitor function, and calculates a field current on-off control signal output thereof based upon the field current on-off control signal output calculated by the first on-vehicle power generation controller.