JP3069662U - Electric residual quantity indicator structure of electric vehicle - Google Patents

Abstract

(57) [Problem] To provide a new electric remaining amount indicator structure of an electric vehicle that can measure accurately and can respond to a real remaining amount of electricity. SOLUTION: An electric measurement line 1 connected to a battery 5, a feedback circuit 3 connected between a power supply burden 2 and the electric measurement line 1, and a meter 4 relatively reacting to the remaining amount of electricity in the electric measurement line 1. Be composed. The meter 4 is simply displayed by a non-returnable meter, or the measured value is A / D converted and reacted on an electronic display panel.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to measurement of current supplied to a battery, and more particularly, to a structure of an electric remaining amount indicator of an electric vehicle which displays a real remaining amount of the battery and does not measure a rising voltage of the battery.

[0002]

[Prior art]

 Earth resources are finite and burning objects causes air pollution. In the past, most of the power was obtained by burning oil, but now it has gradually changed to a smokeless electric power supply system that protects the environment. For example, the recently developed electric vehicles used in everyday life are a prominent example. However, this type of electrically driven vehicle has not yet reached the diffusion stage. This is because charging places are currently limited, and the method of displaying the remaining amount of electricity is not as simple as the conventional oil method, and the charging time is relatively long, and the remaining amount is easy from the outside. This is because there is a problem that it is necessary to rely on the measurement of correlated measuring equipment, such as not being able to recognize it. However, in applications, the storage and measurement of that quantity is very important for the user to determine whether the equipment is working properly. Conventional electric vehicles are unable to move due to lack of power on the way after departure, often resulting in pushing vehicles themselves. As a result, no one was willing to give preference to eco-friendly electric vehicles.

As shown in FIG. 4, a conventional electric quantity display is achieved by providing a voltage meter in a power supply circuit, and the measurement result is indicated by a scale of a needle. As a basis for whether the vehicle can still run, after charging the user himself and going out, the situation in which he pushes the vehicle halfway and turns back is avoided.

[0004]

[Problems to be solved by the invention]

 However, its structural design does not really take into account the use characteristics of the battery, and the electrical measurement cannot react to the true remaining amount of electricity after power is applied. This is because, once the battery has used electricity, once the power supply is stopped and rested, as shown by the upper line in FIG. 5, the battery generates a voltage imaginary value that increases once. For this reason, when measuring electricity with the conventional structure, the meter can easily indicate the remaining amount of 90% and cannot accurately react to the actual remaining amount of only 30%. For this reason, the user is erroneously determined that if the capacity indicated by the electric meter can be returned to a certain destination.

It is a primary object of the present invention to provide a new electric vehicle remaining charge indicator structure that is sufficiently accurate to measure and can respond to the true remaining electric power.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned object, the structure of the electric remaining amount indicator of the electric vehicle according to the present invention includes an electric measurement line connected to the battery, a feedback circuit connected between the power supply load and the electric measurement line, and an electric measurement line. It consists of a meter that responds relatively to the remaining amount of electricity. Among them, the meter is simply displayed by a non-returnable meter, or A / D conversion of the measured value is made to react to the electronic display panel. As a result, after the burden has moved and the electricity is actually used, the electricity is measured by the feedback circuit and passed through the electricity measurement line, and the actual remaining amount of electricity in the electric vehicle is displayed on the meter to inform the user. In addition, since the conventional measurement of the remaining amount of electricity is inaccurate, the situation where an incorrect decision is made and the vehicle is pushed halfway is eliminated.

[0007]

[Embodiment of the invention]

 FIG. 1 and FIG. 2 show a first embodiment of an electric remaining amount indicator structure for an electric vehicle according to the present invention. The electric remaining amount indicator structure of the electric vehicle mainly corresponds to the electric measurement line 1 connected to the battery 5, the burden 2 The feedback electric circuit 3 connected between the motor and the electric measurement line 1, and the electric value of the electric measurement line 1. It consists of a meter 4 that reacts.

The meter 4 according to the first embodiment is a simple electronic meter of a non-return type, which is connected in series to the electric measurement line 1, and an amplifier 31 is provided in the feedback circuit 3 to amplify a signal. The output terminal controls the timing of the electric measurement passing through the electric measurement line 1 in accordance with the operation of the control switch 32.

As shown in FIG. 1 and FIG. 5, the effective design provided in the present invention is such that the feedback circuit 3 is detected when a large current is generated by actually operating electricity by operating the load 2 motor. The switch 32 is controlled to supply electricity to the electric measurement line 1, and the remaining amount of electricity is displayed on the meter 4 and provided to a viewer. An electronic meter that does not return soon will apply a feedback measurement method under a large current situation so that the quantity of electricity shown after the measurement does not return to the original position. The meter value does not change even if a large current occurs when the battery 5 is used again without reacting to the imaginary voltage rise phenomenon that occurs when the use of the battery 5 is completely stopped. It goes down gradually.

Therefore, the actual amount of electricity in the battery 5 can be easily notified from the data measured by the meter 4. Therefore, the present invention can eliminate the situation where electricity is lost on the way to the destination by incorrectly measuring the remaining amount of electricity generated by the conventional method.

FIGS. 2 and 3 show a second embodiment of the present invention. Among them, the meter 4 is an electronic display board, and an A / D converter is provided behind the feedback circuit 3 and the electric measurement line 1. After the measurement corresponding to the recorded numerical value 62 included in the address 61 of the memory 6, the numerical value is displayed on the electronic meter. The battery 5 is used until it is completely discharged from the high potential, but the voltage value gradually decreases in accordance with the operation of the vehicle. During metering, even if the voltage increases after use, the meter number does not increase.

However, when the voltage is restored to a certain level (for example, the maximum value of the battery charge saturation) while the battery 5 is being charged, a reset is generated in the memory 6 and the maximum value is displayed again. In this way, it is possible to avoid mistakes in the conversion of the isometric pressure measurement, and to ensure the accuracy of the numerical value displayed by the meter 4.

[0013]

[Effect of the invention]

 As described above, according to the present invention, it is possible to effectively solve the problem of measured value failure, which is a drawback of the conventional technology, and provide an accurate numerical value to a user. Then, the remaining amount of electricity in the electric vehicle is erroneously determined so that the vehicle is not pushed halfway.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram of a first embodiment of an electric remaining amount indicator structure according to the present invention.

FIG. 2 is an electric circuit diagram of a second embodiment of the remaining electric charge indicator structure according to the present invention.

FIG. 3 is a structural diagram of a converted numerical display of FIG. 2;

FIG. 4 is an electric circuit diagram of a conventional electric remaining amount indicator coupling.

FIG. 5 is a diagram showing an equivalent remaining amount of a battery.

[Explanation of symbols]

 1 Electric measurement line 2 Burden 3 Feedback circuit 4 Meter 5 Battery 6 Memory 31 Amplifier 32 Switch 61 Address 62 Numerical value

Claims (6)

[Utility model registration claims] An electric measurement line connected to a battery, a feedback circuit connected between a power supply load and the electric measurement line, and a meter responsive to a charge value of the electric measurement line. After using the electricity by moving the power supply burden, the feedback circuit is detected, the electricity measurement line is energized, and the value corresponding to the remaining amount of electricity is displayed on the meter to inform the user. An electric remaining amount indicator structure for an electric vehicle, characterized in that: 2. The meter according to claim 1, wherein the meter is a non-returnable electronic meter, which is connected in series to the electric measurement line, an amplifier is provided in the feedback circuit, and an output terminal of the meter is operated by a control switch. 2. The electric remaining amount indicator structure for an electric vehicle according to claim 1, wherein a timing of electric measurement passing through the electric measurement line is controlled. 3. The meter is an electronic display board having an A / A behind the feedback circuit and the electrical measurement line.
2. The electric remaining amount indicator structure for an electric vehicle according to claim 1, wherein a D conversion is provided, and the numerical value is displayed on the meter at least corresponding to a recorded numerical value included in an address of the memory. 4. The recorded numerical value according to claim 1, wherein when the electric vehicle is moving, the recorded numerical value only decreases gradually in accordance with the electric charge pressure value, but does not calculate the voltage when the voltage increases during weighing. Item 3. An electric remaining amount indicator structure for an electric vehicle according to Item 3. 5. The electric vehicle according to claim 3, wherein the recorded numerical value is reset when a voltage rises to a certain level under a charged state, and the highest value is recorded again. Remaining amount indicator structure. 6. The electric remaining amount indicator structure for an electric vehicle according to claim 5, wherein the reset level is a battery charge saturation maximum value.