JPS58201537A - 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 In a charging generator installed in a vehicle or the like, the charging generator and the charging generator are operated in order to drive the charging generator within an optimum constant rotation speed range. The present invention relates to a charging control microcomputer device for a vehicle, in which a clutch device and a transmission device are provided between an engine that drives the vehicle, and a predetermined value of a voltage regulator device that controls the output voltage of the charging generator is externally set. be.

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. It is common to charge storage batteries. 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. When the output current is saturated,
This method had drawbacks such as a rapid increase in losses.

The present invention provides an excellent vehicle charging control microcomputer device that eliminates the above-mentioned drawbacks.

An embodiment of the present invention shown in the drawings will be described below.

In the figure, (1) is an internal combustion engine installed in a vehicle (not shown), (2) is a clutch device that relays and transmits the rotational drive output of the engine (1), and (201) is a charging control device that will be described later. An input terminal for operation commands (connection, disconnection, slipping status, etc.) from the microcomputer (9), (3) a transmission device that accelerates, decelerates, and transmits the rotational drive output from the clutch device (2), (801) ) is a charging generator driven by the charging control micro transmission (3), (401) is a first rectified output terminal, (402) is a II2 rectified output terminal that generates generated voltage information, (408) is the field coil output terminal,
(404) is a grounding end. (5) The above charging generator (
4) A voltage regulator that controls the output voltage to a predetermined value.
501) is an initial excitation terminal, (5tJ2) is a voltage detection terminal, (508) is a field coil input terminal, (504) is a ground terminal, and (505) is an external control terminal. (6) is a storage battery that generates storage battery terminal voltage information, (7) is a key switch, and (8) is a charging indicator light. (9) is the charging control microcomputer, (901) is the storage battery 16) terminal voltage input terminal, (902) is the 2nd!1st output terminal (402)
A voltage input terminal (RI08) is a reference signal output terminal that outputs an external control reference signal to the external control terminal (505) of the voltage regulator (5), and (904) is a gear ratio to the transmission (3). Setting output terminal, (905) is an operation command output terminal to the clutch device (2), (906) is an information input terminal from the engine control microcomputer (111). ON is the terminal for inputting information from the engine control microcomputer (111). More recent information (intake temperature, rotational speed, crank angle, exhaust temperature.

(101) is a sensor (b) signal input terminal described later, and (102) is a control signal output terminal for the above-mentioned engine (1). , (108) is an information output terminal to the charging control microcomputer (9), (b) is a sensor that detects the state of the engine (1) and sends it to the engine control microcomputer 00, (111) 1 is a sensor signal output terminal, (6) is an actuator for mechanically driving and controlling the engine (1) in response to a control signal from the engine control microcomputer 04, and (121) is a control signal input terminal.

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

First, when the key switch (7) is closed when starting the engine (1), the initial excitation terminal (501) of the key switch (7), charging indicator light (8), and voltage regulator (5) is activated by the storage battery (6). ), the field coil in the charging generator (4) connected to the second rectified output terminal (402) of the charging generator (4) and the field coil output terminal (40B) via the voltage detection terminal (502). In the circuit of the field coil input terminal (threshold 9, ground terminal (504)) of the voltage regulator (5), an initial excitation current flows to the field coil, a field magnetomotive force is generated, and a charging display is displayed. The light (8) lights up.At this time, although not shown, each computer (11) α0 and, if necessary,
Clutch device (2), transmission device (3), sensor (b)
, the storage battery (h) terminal voltage is applied to the actuator (2) via the key switch (7), and the actuator (2) starts operating.

When the engine (1) is started in this state, the charging control microcomputer (9) calculates based on the engine rotation signal from the engine control microcomputer Q1.
Operation commands such as connection, disconnection, and slipping status are given to the clutch device (2) from the operation command terminal (:9Q5).
The gear ratio for acceleration and deceleration is given to the transmission (3) from the gear ratio setting output terminal (904), and the charging generator (
4) Controls the drive so that it is always driven within an optimum constant rotational speed range.

Further, while the engine (1) is in operation, the charging control microcomputer (9) uses charging system information consisting of engine information from the engine control microcomputer and storage battery (6) terminal voltage and generated voltage information. The reference voltage optimal for the engine (1) and charging system is always output from the reference signal output terminal (908) to the voltage regulator (6) by calculation.

While the charging generator (4) is generating power, the charging indicator light (8) turns off to notify the power generation state because there is almost no potential difference between both ends.

As detailed above, in the present invention, a clutch device and a transmission device are provided between the engine and the charging generator, and the clutch device and the transmission device are operated by inputting each information of the engine and the voltage generated at the storage battery terminal voltage 2. This system is controlled by a charging control microcomputer to ensure that the charging generator is always driven within an optimal constant rotational speed range, so problems that may occur due to changes in the driving rotational speed of the charging generator, such as engine speed, can be avoided. This eliminates the problem of insufficient output when the engine rotates at low speeds and increased loss when the engine rotates at high speeds, making it possible to use the charging generator under optimal usage conditions.

In addition, since the reference voltage of the voltage regulator, which is determined by the charging control microcomputer, is calculated and set based on engine information and charging system information, it is possible to set the reference voltage that is optimal for charging the storage battery, and the above-mentioned engine The effect is to easily control the mechanical load during acceleration and deceleration.

[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 transmission, (4) is the charging generator, (5) is the voltage regulator, (6) is the storage battery, (7) is the key switch, (8)
is the charging indicator light, (9) is the charging control microcomputer, OQ is the engine control microcomputer, (b) is the sensor, and (2) is the actuator.

Claims (1)

[Claims] A clutch device that transmits the rotational drive output from the engine, a transmission device that speeds up or decelerates and transmits the rotational drive output of the clutch device, a charging generator driven by the transmission, and charging using the output of the charging generator a storage battery, a voltage regulator that controls the output voltage of the charging generator to a predetermined value, a charging indicator that displays the power generation status of the charging generator, and inputting various information from the engine to control the engine. The reference voltage of the voltage regulator is set based on the engine information, the terminal voltage information of the storage battery, and the generated voltage information of the charging generator from the engine control microcomputer and the engine control microcomputer. Among the engine information, the engine rotation signal is calculated, and operation commands (connection, disconnection, slipping status, etc.) are given to the clutch device, and a gear ratio setting command is given to the transmission device, so that the charging generator always rotates at a constant speed. A charging control microcomputer device for a vehicle, which is equipped with a charging control microcomputer that controls driving within a certain range.