JPS61153570A - On-vehicle electric integrating meter - Google Patents

Abstract

PURPOSE:To indicate the operating rate of a device, and to give a driver feelings of security and reliability and easily decide on the repair period of electric components, etc., by connecting an integrating ammeter to the current path of automobile accessories. CONSTITUTION:When a starting electric motor 3 is put in operation by closing a key switch 17, an internal combustion engine starts. In this case, the main current of the electric motor 3 is integrated and displayed by a current integrating meter AH1 connected between a normal open contact 20 for the electric motor 3 and a storage battery 8. A charging electric generator 2 begins to generate electricity after the internal combustion engine starts and the charging current of the battery 8 is integrated and displayed by a current integrating device AH2 connected to the current path of accessories to annunciate the process of loading corresponding to the operating rate. Consequently, the driver is given feelings of security and reliability and the repair time of replacement, etc., of a brush and a fan belt is easily discriminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an on-vehicle electricity totalizer that integrates current or power flowing between electrical equipment and a storage battery mounted on an automobile or the like.

[Conventional technology]

Conventionally, there have been few actual examples of this type of totalizer, and the basic configuration is shown in FIG. In the figure, 1 is an internal combustion engine, and an alternator 2 serving as a charging generator and a starter motor 3 are attached to an engine body 4.

Reference numeral 5 denotes a fan belt that is wound between the fan 6 and the alternator 2, and is attached to the crankshaft (not shown) of the internal combustion engine 1.
driven by. The charging current of the alternator 2 is connected to the positive terminal 8a of the storage battery 8 via the connection $7 and charged. 9 is a cable for the storage battery 8, and the starting motor 3 and the storage battery 8 are connected to each other. Reference numeral 10 denotes a ground connection line, which is connected between the engine main body 4 and the negative terminal 8b of the storage battery 8. 11 is an air cleaner, 12 is an intake pipe, 13
is a transmission.

Next, the operation will be explained. When the starting motor 3 operates and the starting of the internal combustion engine 1 is completed, the alternator 2 is driven by the internal combustion engine 1 via the fan belt 5 to generate a charging voltage (charging power), and the storage battery 8 is charged.

[Problem that the invention seeks to solve]

Conventional devices are configured as described above, and for example, the amount of power generated by the alternator 2 is unknown, and the amount of power used by the starter motor is unknown, so there is no way to know the operating rate of the device, and the driver is not informed. Gives a feeling of injustice. In addition, in the case of starting motors, maintenance is inconvenient because the timing of repairs such as brush replacement is unclear, and the amount of input power is unknown when operating under high load in a short period of time, which may cause burnout. There was a problem.

This invention was made to solve the above-mentioned problems, and is capable of detecting and displaying the integrated amount of electricity of electrical components to the driver, as well as having an overload protection function or indirectly indicating the amount of charge in the storage battery. The purpose is to obtain on-vehicle electrical integration that can be detected.

[Means for solving problems]

The on-vehicle electricity totalizer according to the present invention includes a charging generator mounted on an engine, a storage battery and electrical components, and a small storage battery (
Both are equipped with integration means on one of the connecting lines.

[For production]

The on-vehicle electricity totalizer of the present invention can integrate the current or electric energy of a charging generator or electrical components, display this on the instrument panel of the driver's seat, or take it out as a signal for operating an overload protection function.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, numerals 1 to 13 are the same as those of the conventional device shown in FIG. AH1 and AH2 are current integration devices, respectively, and are connected to a current detection resistor or a current detection hole I.
C, and an operational amplifier 49, F/F, which amplifies these output voltages.
It is equipped with a V converter, a counter, etc., and is configured to digitally display the integrated current. The current integrating devices AH, AH, are connected in series between the positive terminal 8a of the storage battery 8 and the connection lines 7a, 9a of the charging generator 2 and starting motor 3, respectively.

FIG. 2 is a circuit diagram of the above device, and in the figure, Rag
is an IC regulator that controls the current of the exciting coil 14 and adjusts the output of the stator coil 15. IB is a three-phase full-wave diode for rectification, and is connected to the storage battery 8 via a current integration device AH. 17 is a key switch, charging generator 2
and control contacts 17a, 17b for the starting motor 3. 18 is an electromagnetic switch for the starting motor 3, which is composed of a coil 19 and a normally open contact 20;
A current integration device AH1 is connected between the storage battery 8 and the storage battery 8.

Next, the operation will be explained. When the key switch 17 is closed and the starter motor 3 is operated, the internal combustion engine 1 is started. At this time, the main current of the starting motor 3 is integrated and displayed by the current integration device AH.

Note that the above integration can be compared with the amount after the key switch 17 is closed, and used as a signal for displaying an overload or operating a protection device that interrupts energization. Now, after starting the internal combustion engine 1, the key switch 17 is connected to the terminal 17a, the charging generator 2 starts generating electricity, and the current integrating device A
H2 integrates the charging current of the storage battery 8 and displays it on the driver's seat. This allows the driver to check the progress of the load on the device, determine the timing of repairs such as brush replacement or fan belt replacement, and indirectly grasp the state of charge of the storage battery 8 by comparing the current integration device. Incidentally, integrating wattmeters W, W (FIG. 2) may be attached to the gates of the current integrating devices AH1, AH.

! 2 Figure 3 shows another embodiment, in which AH is a current integration device having an addition/subtraction mechanism, and this device has a ground connection 5.
1051 and 101L are connected in series, the charging current of the charging generator 2 is added, and the discharging current of other electrical components is subtracted and the sum is displayed.

This has the advantage that the remaining capacity of the storage battery 8 can be easily determined.

〔Effect of the invention〕

As explained above, according to the present invention, since the electricity totalizer is connected to the current path of the on-board electrical components of the automobile, the integrated amount of electricity can be displayed on the display board at the driver's seat, which gives the driver a sense of security and confidence. It also has the effect of easily determining when it is time to repair electrical equipment.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an internal combustion engine equipped with an on-vehicle electric totalizer showing one embodiment of the present invention, FIG. 2 is a circuit diagram, FIG. 3 is a main part circuit diagram showing another embodiment, and FIG. The figure is a configuration diagram of a conventional internal combustion engine. 1... Internal combustion engine, 2... Charging generator, 3... Starting motor, 5... Fan belt, 8... fi electric ffj
1, AH,, AH,. AH,...Current integrating device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) An on-vehicle electricity integration system characterized by comprising a charging generator mounted on an engine, a storage battery, electrical components, and an integration means for integrating current or electric power applied to at least one connection line of the storage battery. Total. (2) The vehicle-mounted electricity totalizer according to claim 1, wherein the electrical component is a starter motor. (3) The on-vehicle electricity meter is connected between the storage battery and ground,
2. The on-vehicle electricity totalizer according to claim 1, wherein the integration is performed by the charging current of the charging generator and subtracted by the discharging current of the electrical components.