JPH0118656B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a charging generator installed in a vehicle, etc., in order to drive the generator within an optimal rotational speed range. The present invention relates to a charging control microcomputer device for a vehicle which is provided with a clutch device and a transmission device, and which detects a rotation signal of the internal combustion engine to control the clutch device and the transmission device.

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 conventional system, the output current, drive torque, and efficiency of the charging generator change depending on the engine speed, and the output current is insufficient in the low engine speed range, and the output current is insufficient in the high engine speed range. However, it had drawbacks such as a sudden increase in loss in the saturated state.

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 FIGS. 1 to 4 will be described below. In the figure, 1 is an internal combustion engine installed in a vehicle (not shown), 101 is a rotation signal output terminal of the engine, 2 is a clutch device that relays and transmits the rotational drive output of the engine 1, and 201 is a clutch device that will be described later. Operation command (connection, slip status) input terminal from the charging control microcomputer 4; 3 is a transmission device that speeds up, decelerates and transmits the rotational drive output from the clutch device 2; 301 is a terminal from the charging control microcomputer 4; A gear ratio setting input terminal 4 detects the rotation signal of the engine 1 and controls the clutch device 2 and the transmission 3 so that the charging generator 5, which will be described later, is driven within a constant rotation speed range. In the control microcomputer, 401 is a rotation signal input terminal, 402 is an operation command output terminal to the clutch device 2, 403 is a gear ratio setting output terminal to the transmission 3, and 5 is a charging generator driven by the transmission 3. 501 is a first rectified output terminal, 502 is a second rectified output terminal, 503 is a field coil output terminal, 5
04 is a grounding end. 6 is a voltage regulator that controls the output voltage of the generator 5 to a predetermined value, 601 is an initial excitation terminal, 602 is a voltage detection terminal, 603 is a field coil input terminal, and 604 is a ground terminal. 7
8 is a storage battery, 8 is a key switch, and 9 is a charging indicator light.

The operation of this inventive device configured as above will be explained. First, when the key switch 8 is closed when starting the engine 1, the second rectification of the generator 5 is transmitted from the storage battery 7 through the key switch 8, the charge indicator light 9, the initial excitation terminal 601 of the voltage regulator 6, and the voltage detection terminal 602. It passes through the field coil in the generator 5 connected to the output end 502 and the field coil output terminal 503, and is connected to the field coil input terminal 6 of the voltage regulator 6.
03, an initial excitation current flows to the field coil in the circuit at the ground end 604, and a field magnetomotive force is generated. At this time, although not shown, the terminal voltage of the storage battery 7 is applied to the computer 4, and if necessary, the clutch device 2 and the transmission device 3 via the key switch 8.
Start operation.

When the engine 1 starts in this state, the rotation signal of the engine 1 is transmitted from the rotation signal output terminal 101 to the rotation signal input terminal 40 of the charging control microcomputer 4.
Sent to 1. The charging control microcomputer 4 performs calculations based on the rotational signal and gives operation commands for connecting and slipping states to the clutch device 2 from an operation command output terminal 402, and to the transmission device 3, it provides speed ratios for acceleration and deceleration. The gear ratio setting output terminal 4
03, the generator 5 is controlled so that it is always driven within an optimum constant rotation speed range. for example,
When the rotational speed of the generator 5 is kept constant at 5000rpm, when the engine 1 starts as shown in FIG.
Up to, the gear ratio is 10 and the rotation speed of engine 1 is 2500~
An operating command is given to the transmission 3 so that the gear ratio is 2 up to 5000 rpm, and 1 when the engine rotational speed is 5000 to 7500 rpm. on the other hand,
Regarding the clutch device 2, as shown in FIG. 4, the gear ratio 10 → clutch slip ratio is 0 to 80%, and the gear ratio 2 → clutch slip ratio 0 to 80%.
50%, gear ratio 1 → clutch slip rate 0-30%
The output of the generator 5 is kept constant with respect to the engine rotational speed as shown in FIG. When the generator 5 is driven to generate electricity, the output voltage is controlled to a predetermined value by the voltage regulator 6, and the storage battery 7 is charged by the output voltage. At this time, since the potential difference between both ends of the charging indicator lamp 9 is almost eliminated, the charging indicator lamp 9 is turned off to notify the power generation state.

As described in detail above, in this invention, a clutch device and a transmission device are provided between the engine and the generator, and the clutch device and the transmission device are controlled by a charging control microcomputer, so that the generator is always in the optimum state. It is designed to be driven within a constant rotation speed range. As a result, problems caused by changes in the driving rotation speed of the generator, such as insufficient output at low rotation speeds and increased loss at high rotation speeds, are eliminated, and the generator can be used under optimal operating conditions.

[Brief explanation of drawings]

FIG. 1 is an electric circuit diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the characteristics of the generator rotation speed with respect to the engine rotation speed according to the embodiment of the invention, and FIG. 3 is an electric circuit diagram showing an embodiment of the invention. FIG. 4 is a characteristic diagram showing the generator output characteristic with respect to the engine rotation speed according to an example. FIG. 4 is a characteristic diagram showing the clutch slip ratio characteristic with respect to the engine rotation speed according to an embodiment of the present invention. In the figure, 1 is an internal combustion engine, 2 is a clutch device, 3 is a transmission device, 4 is a charging control microcomputer,
5 is a charging generator, 6 is a voltage regulator, 7 is a storage battery, 8 is a key switch, and 9 is a charging indicator light.

Claims (1)

[Claims] 1. 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 a power generator driven by the output of the charging generator. A storage battery to be charged, 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 a rotation signal of the engine are detected and calculated, and the A charging control microcomputer that controls the charging generator so that it is always driven within a constant rotational speed range by giving operation commands (connection, slipping state) to the clutch device and giving a gear ratio setting command to the transmission device. A charging control microcomputer device for vehicles equipped with