JPS58201541A - Charge control microcomputer for vehicle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention provides a charging generator equipped with a vehicle, etc.
In order to drive the generator within an optimal constant rotation speed range, a clutch device is provided between the generator and the engine that drives the generator to control the output voltage of the charging generator. The present invention relates to a vehicle charging control microphone computer device that externally sets a predetermined value of an adjustment device.

Conventionally, this type of device is controlled to a predetermined value set in advance by a voltage regulator installed integrally with a charging generator driven by an internal combustion engine installed in a vehicle, etc.
It is common to charge an on-vehicle storage battery using the predetermined value. However, in this case, when the predetermined value is controlled during acceleration and deceleration of the internal combustion engine to control the generator drive output as the mechanical load of the engine, it is difficult to control from the outside.

Further, conventional charging generators are generally driven directly by a belt or the like at a constant gear ratio by an internal combustion engine installed in a vehicle or the like. However, in the above method, the output current, drive torque, and efficiency of the charging generator change depending on the engine speed, resulting in insufficient output current in the low engine speed range and insufficient output current in the high engine speed range. However, the disadvantage of this method is that the loss increases rapidly when the output current is saturated.

The present invention provides an excellent vehicle charging control microcomputer device that eliminates the above-mentioned drawbacks. below,
An embodiment of the present invention shown in the drawings will be described. In the figure, (
1) is an internal combustion engine installed in a vehicle (not shown); (2)
(201) is a clutch device that relays and transmits the rotational drive output of the engine (1), (201) is an input terminal for operation commands (connection, disconnection, slipping status, etc.) from a charging control microcomputer (8), which will be described later; ) is a charging generator driven by the clutch device (21), (301) is a first rectified output terminal, (302) is a second rectified output terminal that generates generated voltage information, and (303) is a field coil output. terminal, (304) is a grounding terminal. (41 is a voltage regulator that controls the output voltage of the charging generator (31) to a predetermined value, (401) is an initial excitation terminal, (402) is a voltage detection terminal, (403) is a field coil input terminal, (404) is a ground terminal, (405) is an external control terminal, (5) is a storage battery that generates storage battery terminal voltage information, (61 is a key switch, and (7) is a It is a charging indicator light. (8) is a charging control microcomputer, (801) is a storage battery (5) terminal voltage input terminal, (80)
2) is the second rectified output terminal (302) voltage input terminal, (80
3) is the external control terminal (405) of the voltage regulator (4;
), a reference signal output terminal that outputs an external control reference signal to (
804) is an operation command output terminal to the clutch device (2), (805) is an information input terminal from an engine control microcomputer (91), which will be described later. (901) is an engine control microcomputer that controls the engine +11 by inputting information (intake air temperature, rotational speed, crank angle, exhaust temperature, mixture ratio, etc.).
is a sensor αl signal input terminal to be described later, (902) is an information output terminal to the above engine (11 control signal output terminal, (903) is an information output terminal to the above charging control microcomputer +8), and αq detects the state of the above engine (II). and sends it to the engine control microcomputer +91, where (101) is the sensor signal output end, and aυ is the sensor that receives the control signal from the engine control microcomputer (91) and mechanically controls the engine (1). The actuator (111) for drive control is a control signal input terminal.

The operation of this inventive device configured as above will be explained.

First, when the key switch (6) is closed when starting the engine (1), the key switch (61), charging indicator light (7), and initial excitation terminal (401) of the voltage regulator (4) are activated by the storage battery (5). , the generator (via the voltage detection terminal (402)
The second rectified output terminal (302) of 3) passes through the field coil in the charging generator (3) connected to the field coil output terminal (303), and is connected to the field coil input of the voltage regulator (4). In the circuit between the terminal (403) and the grounding end (404), an initial excitation current flows to the field coil, a field magnetomotive force is generated, and the charging indicator light (7) lights up. At this time, although not shown, the terminal voltage of the storage battery (5) is applied to each computer +81191 and, if necessary, the clutch device (2), sensor α [, and actuator αυ via the key switch (6). and starts operating.

When the engine (1) is started in this state, the charge control microcomputer (81) calculates based on the rotation signal from the engine information from the engine control microcomputer +91, and connects and connects the clutch device (2F). Operation commands for disconnection, slippage, etc. are given from the operation command output terminal (804), and the charging generator (3) is controlled so that it is always driven within an optimum constant rotational speed range.

Furthermore, during the operation of the engine (11), the charging control microcomputer (8) receives charging system information consisting of engine information from the engine control microcomputer (91), storage battery (5) terminal voltage, and generated voltage information. Calculated by Indicator light (7
) is turned off to notify the power generation status because there is almost no potential difference between both ends.

As described in detail above, in this invention, a clutch device is provided between the engine and the charging generator, and the clutch device is controlled by a charging control microcomputer that calculates input information on the engine, storage battery terminal voltage, and generated voltage. , the charging generator is always driven within an optimum constant rotational speed range. As a result, problems that occur due to changes in the driving rotation speed of the charging generator, such as insufficient output when the engine rotates at low speeds and increased loss when rotating at high speeds, are eliminated, and the charging generator can be used under optimal usage conditions. This has the effect of

In addition, since the charging control microcomputer calculates and sets the reference voltage of the voltage regulator from engine information and charging system information, it has the effect of setting the optimal reference voltage for charging the storage battery and the acceleration/deceleration of the engine. This has the effect that the mechanical load at the time can be easily controlled.

[Brief explanation of drawings]

The drawing is a block diagram showing an embodiment of the present invention. In the figure, (1) is the internal combustion engine, (2) is the clutch device, and (3) is the internal combustion engine.
) is the charging generator, (4) is the voltage regulator, [5] is the storage battery, (6 is the key switch, (7) is the charging indicator light, (8) is the
) is the charging control microcomputer, (9) is the engine control microcomputer, (IQ is the sensor, αυ is the actuator agent Shin Kuzuno.

Claims (1)

[Claims] A clutch device that transmits rotational drive output from the engine, a charging generator driven by the clutch device, a storage battery charged by the output of the charging generator, and controlling the output voltage of the charging generator to a predetermined value. A voltage regulator, a charging indicator that displays the power generation status of the charging generator, an engine control microcomputer that inputs various information from the engine and controls the engine, and the above information from the engine control microcomputer. When the reference voltage of the voltage regulator is set using the engine information, the terminal voltage information of the storage battery, and the generated voltage information of the charging generator, the engine rotation signal is calculated from the engine information, and the clutch device A charging control microcomputer device for a vehicle, comprising a charging control microcomputer that gives operation commands (connection, disconnection, slipping state, etc.) to the charging generator and controls the charging generator so that it is always driven within a constant rotation speed range.