KR20150029111A - Electric vehicle for managing fuel consumption - Google Patents

Abstract

The present invention relates to an electric vehicle capable of managing fuel consumption, and more specifically, to an electric vehicle which calculates an optimal travel path through a navigation device and estimates expected fuel consumption to recommend a charging station or manage power supply of an electronic device connected to the electric vehicle, thereby enabling a user to manage the fuel consumption by the electric vehicle. According to the present invention, the electric vehicle capable of managing fuel consumption comprises: a battery which is mounted in the electric vehicle and supplies driving power; an electronic control unit (ECU) which collects a power amount of the battery and driving information of the electric vehicle and controls operation of the electric vehicle; a navigation device which calculates a driving distance, the time required, and fuel consumption that are predicted based on a departure point and a destination; a fuel consumption predicting unit which calculates required fuel consumption by predicting fuel consumption required to reach the destination based on the fuel consumption for a predetermined time period during driving of the electric vehicle and a travel path calculated by the navigation device; and a fuel information notifying unit which generates an alert sound or an alert message according to battery power remaining.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electric vehicle for managing fuel consumption,

The present invention relates to an electric vehicle capable of managing fuel consumption. More particularly, the present invention relates to an electric vehicle capable of calculating an optimum travel route through a navigation device, estimating an expected consumption amount of fuel, And to control the electric power supply of the electronic device connected to the electric vehicle.

In recent decades, interest in environmental protection has increased rapidly, and hybrid electric vehicles (HEVs) and electric vehicles (EVs), which use electric power instead of gasoline or light oil, Electric Vehicle) has been actively researched and developed.

Unlike ordinary vehicles, hybrid electric vehicles and electric vehicles control electric motors with a high-voltage high capacity battery to provide starting torque, starting torque during vehicle start, engine torque assist during running, stopping the engine when the vehicle is stopped, restarting after idle stop And the energy is charged to the battery through the motor power generation control by the power generation during stoppage and the power generation during the stoppage.

Generally, in an electric vehicle, a hybrid electric vehicle, and a special vehicle field driven by electric energy, electric energy charged in the battery is used for running, and electric energy consumed more than electric energy charged during traveling If you travel more than one limit, you will run out of battery power.

Therefore, if the driver of an electric vehicle can not reach the destination before all the batteries installed in the vehicle are exhausted, the electric charging station for charging the battery must charge the battery or replace the discharged battery with a fully charged battery, Such as replacement, fast charging, and low-speed charging, and the arrival time of the destination was exponentially increased depending on which charging station the charging driver receives from the unrecognizable driver.

As a related art, Korean Patent Laid-Open Publication No. 2013-0092783 describes an electric vehicle charging system. Such conventional technology has an advantage in that charger information of electric car chargers can be integrally managed. However, there is no way to cope with the case where the battery installed in the electric car can not reach the destination before the battery is exhausted and discharged There is a limit.

In the traveling system of the electric vehicle according to the related art operating as described above, since the distance travelable by the battery mounted on the electric vehicle is limited, the electric charging station must perform charging after traveling a certain distance .

Electric vehicles, however, must be charged for a fairly long period of time, from a minimum of 3 hours to a maximum of 9 hours. Therefore, there is no problem when parking in a parking lot or stopping for a long time, but there is no other way to travel long distances.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-described problems, and it is an object of the present invention to provide a navigation device capable of calculating an optimal travel route, estimating the expected amount of fuel consumption, It is an object of the present invention to provide an electric vehicle that can recommend or control the electric power supply of an electronic device connected to an electric vehicle

An object of the present invention is to provide an electric vehicle including a battery that is mounted on an electric vehicle and supplies driving power, an ECU that collects electric energy of the battery and operation information of the electric vehicle and controls operation of the electric vehicle, The amount of fuel consumed during a predetermined period of time during driving of the electric vehicle and the travel route calculated in the navigation to calculate a fuel consumption amount required to the destination And a fuel information notification unit for generating a warning sound or a warning message according to the amount of remaining power of the battery. The fuel consumption notification unit have.

According to a preferred aspect of the present invention, the fuel consumption prediction unit may calculate the required fuel amount by reflecting the road condition and the real-time traffic situation of the travel route to the destination collected through the navigation.

According to another preferred aspect of the present invention, the electronic control unit may further include an ECU control unit for measuring an amount of power consumed by each of the electronic devices interlocked with the electric vehicle, and setting an electronic device for interrupting the power supply to secure the amount of electric power.

According to another preferred aspect of the present invention, the ECU control unit can set an electronic device to cut off power supply based on a current power consumption amount and a predetermined importance.

According to another preferred aspect of the present invention, the fuel information informing unit may be configured such that when the amount of power of the battery is smaller than the amount of fuel calculated by the fuel consumption prediction unit, The charging station can be guided.

According to another preferred aspect of the present invention, the fuel information informing unit measures a dark current and an output voltage of the battery, and when the dark current is larger than a predetermined size or the output voltage is smaller than a preset size, A warning message may be generated.

According to the electric vehicle capable of managing the fuel consumption according to the present invention, the optimum travel route is calculated through the navigation device, and the expected consumption amount of the fuel is predicted. Therefore, before the electric power stored in the battery of the electric vehicle is discharged, The charging can be carried out deliberately, so that convenience is increased.

Further, according to the electric vehicle capable of managing the fuel consumption according to the present invention, since electric power supply of the peripheral electronic device can be managed in order to secure the necessary electric power required for the operation, the electric vehicle can be efficiently operated.

In addition, according to the electric vehicle capable of managing the fuel consumption according to the present invention, it is possible to check the state of the battery in real time and to check the abnormal state of the battery, so that the electric vehicle can be safely operated.

In addition, according to the electric vehicle capable of managing the fuel consumption according to the present invention, when the dark current and the output voltage are measured and the dark current is larger than a predetermined size or the output voltage is smaller than a predetermined size, The battery can be safely managed by sending a message.

1 is a block diagram showing a detailed configuration of an electric vehicle according to an embodiment of the present invention;
2 is a flow chart illustrating a procedure for describing a destination of an electric vehicle according to an embodiment of the present invention;
3 is a flowchart illustrating a procedure for outputting a warning message according to a power status of a battery according to an embodiment of the present invention.
FIG. 4 is a flow chart illustrating a procedure for shutting off power supplied to peripheral electronic devices of an electric vehicle according to an embodiment of the present invention; FIG.
FIG. 5 is a diagram illustrating a warning message regarding a power state of a battery according to an embodiment of the present invention; FIG.
6 is a diagram illustrating a surrounding charging station guidance message according to a power state of a battery according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating a message for blocking power supplied to a peripheral electronic device of an electric vehicle according to an embodiment of the present invention; FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the embodiments described below are only for explanation of the embodiments of the present invention so that those skilled in the art can easily carry out the invention, It does not mean anything.

1 is a block diagram showing a detailed configuration of an electric vehicle according to an embodiment of the present invention. 1, an electric vehicle according to an embodiment of the present invention includes a vehicle driving unit 100, a battery 110, an ECU (Electronic Control Unit) 120, an ECU control unit 130, a fuel consumption prediction unit 140, A fuel information notification unit 150 and an HMI unit (Human Machine Interface) 160.

The vehicle drive unit 100 includes a motor for driving an electric vehicle, a mechanical device for a drive system, and the like, and operates the electric vehicle as electric power is supplied from the battery 110.

The battery 110 receives and stores electric power from the outside, and supplies power required for driving the electric vehicle from time to time. In this case, it is common to apply a secondary battery to the battery, and the type of the secondary battery may be any type of battery applicable to a person skilled in the art.

The ECU 120 collects the amount of electric power of the battery 110 and the driving information of the electric vehicle, and can control the operation of the electric vehicle such as the driving system, the braking system, and the steering system of the electric vehicle.

The ECU control unit 130 measures the amount of electric power required for operation in real time on the basis of the driving information of the electric vehicle collected by the ECU 120, measures the power consumption amount of each of the electronic devices linked with the electric vehicle, It is possible to set an electronic device to cut off the power supply in order to secure it. For example, in the situation where the destination of the electric vehicle is 20 km, the current fuel consumption status of the vehicle is required to be 20 kW, the remaining electric energy of the battery is 21 kW, and when electric power is supplied to the peripheral device, There is a possibility that electric power to move the vehicle may be insufficient, so that peripheral devices connected to the electric vehicle connected to the electric vehicle, which are not essential to the electric vehicle operation, may be selected to cut off the electric power supply so as to secure the necessary electric power consumed by the electric vehicle.

Preferably, the electronic device to be disconnected from the power supply can be set based on the current power consumption and the predetermined importance. Electric vehicles can be connected to various electronic devices in addition to electric motors. For example, there are various peripherals such as an air conditioner, a black box, a vehicle detection sensor, etc., which are not necessarily required for operation but are necessary for the convenience of the user, from an electric motor which is most essential for the operation of the electric vehicle. In this case, the ECU control unit 130 collects the information on the remaining power amount of the battery and the predicted amount of power necessarily required to the destination, calculates the insufficient amount of power, supplies the insufficient amount of power to the air conditioner, the black box, Power can be secured by cutting off the amount of power. As an example, the operation of the vehicle can be assigned a priority to cut off the power supply according to a predetermined criterion. In the case of a peripheral device consuming excessive power, the power is preferentially cut off even when the priority is below It is also possible to operate it in such a way.

The fuel consumption prediction unit 140 may estimate the necessary amount of fuel to the destination based on the amount of fuel consumed during the predetermined time while the electric vehicle is running and the travel route calculated in the navigation. The fuel consumption predicting unit 140 collects driving information such as fuel consumption consumed during a predetermined time of the electric vehicle through the ECU 120 and predicts the fuel consumption amount according to the movement route between the departure point and the destination in navigation .

In this case, the fuel consumption prediction unit 140 may calculate the required fuel amount by reflecting the road condition and the real-time traffic situation of the travel route to the destination collected through the navigation. For example, if one lane in a four-lane road is under construction, or if there is information that a lane is in a control situation due to a traffic accident, it is estimated that the time required is 1.5 times, . In addition, the altitude information to the destination can be collected and the fuel consumption can be predicted by weighting the fuel consumption when the uphill road exists.

The fuel information notification unit 150 may generate a warning sound or a warning message according to the remaining power of the battery.

In this case, the fuel information notification unit 150 may place a separate notification or the like in the center fascia, and may output a warning message on the display screen in cooperation with the HMI unit 160. In addition, a warning sound may be output at regular intervals through a speaker mounted inside the electric vehicle.

Meanwhile, when the amount of power of the battery is smaller than the amount of fuel calculated by the fuel consumption predicting unit 140, the fuel information informing unit 150 guides the charging station closer to the reachable distance by consuming the electric power of the battery . In this case, the fuel information informing unit 150 may collect specific information about the charging station from the navigation, that is, information on the distance to the charging station, high-speed / low-speed charging station, operating time,

The fuel information informing unit 150 may measure a dark current and an output voltage of the battery to generate a warning message for requesting battery check if the dark current is larger than a predetermined size or the output voltage is smaller than a predetermined size have. For example, if the normal dark current of the battery is set to 0.05 A or lower while the starting of the electric vehicle is off, and a dark current higher than this is set, the connection between the battery and the battery and the connection with the electronic device is abnormal And can output a warning message when the user drives the electric vehicle. In case of the output voltage, the normal output voltage may be set to 11.6 V or more in a state where the start is off, and a warning message may be output when the output voltage is lower than this. In this case, it is possible to operate not only the state where the starting is not necessarily turned off, but also the output voltage and the dark current value after starting the engine to judge whether or not the battery is abnormal.

The HMI unit 160 can output the status information such as the speed of the electric vehicle, the state of the engine, and the amount of fuel to the user in real time. In this case, the HMI unit 160 may include user convenience facilities such as a navigation device and AV equipment. In this case, the HMI unit 160 may include a plurality of keypads, or may be implemented in a touch screen format on the display unit.

2 is a flowchart illustrating a procedure for explaining a destination of an electric vehicle according to an embodiment of the present invention. First, in order to drive the electric vehicle, the electronic system is started by positioning the kiss position in ACC (S101). When the kissing position is activated, the driving request is executed (S102) and the driving of the engine is started, the electric power generating unit is started (S103). The user sets the destination through the navigation device (S104), and the navigation device collects the traveling prediction information such as the distance from the current location to the destination, the traffic situation, the road condition, and the current state information of the vehicle in real time (S105). The collected information is output to the user through the HMI unit (S106).

3 is a flowchart illustrating a procedure for outputting a warning message according to a power status of a battery according to an embodiment of the present invention. The step S107 of FIG. 3 will be described in detail after the step S106 of FIG. The user sets a desired travel route among the recommended travel routes output through the navigation (S107), and the fuel consumption prediction unit analyzes the estimated fuel consumption based on the selected course (S108). If the estimated fuel consumption is greater than the remaining power of the battery (S110), the fuel consumption predicting unit outputs a warning message and searches for nearby charging stations And outputs it to the user as shown in FIG. 6 (S111). Also, depending on the degree of difference in the amount of power, the risk is classified as shown in FIG. 5, and a message such as risk, danger, warning, titration, etc. is displayed together with the output.

FIG. 4 is a flowchart illustrating a procedure for shutting off power supplied to peripheral electronic devices of an electric vehicle according to an embodiment of the present invention. The step S1113 of FIG. 4 will be described in detail after the step S112 of FIG. The ECU control unit collects the power consumption of the electronic device connected to the electric vehicle in real time (S113). In addition, the electronic devices collect the importance information previously assigned in association with the running of the electric vehicle (S114). Thereafter, the ECU control unit sets an electronic device to cut off power according to the amount of power to be secured and the importance of the electronic device, and outputs a message to cut off the power supply through the HMI unit as shown in FIG. 7 (S115). The user can check the corresponding warning message and select the allow or deny command (S116). If the allowable command is input, the power supplied to the electronic device is cut off and the required power is secured (S117).

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

100: vehicle drive unit 110: battery
120: ECU 130:
140: fuel consumption prediction unit 150: fuel information notification unit
160: HMI section

Claims (6)

A battery mounted on the electric vehicle for supplying driving power;
An ECU for collecting electric energy of the battery and driving information of the electric vehicle and controlling the operation of the electric vehicle;
A navigation unit for calculating a predicted travel distance, a required time, and a fuel consumption based on a start point and a destination;
A fuel consumption predicting unit for predicting necessary fuel consumption to a destination based on a fuel amount consumed during a predetermined time while the electric vehicle is running and a travel route calculated in the navigation, And
And a fuel information informing unit for generating a warning sound or a warning message according to the remaining power amount of the battery. The method according to claim 1,
Wherein the fuel consumption predicting unit calculates a required amount of fuel by reflecting a road condition and a real-time traffic situation of a travel route to a destination collected through the navigation. The method according to claim 1,
Further comprising an ECU control unit for setting an electronic device to be disconnected from the power supply in order to measure a power consumption amount of each of the electronic devices associated with the electric vehicle and secure a power amount. The method of claim 2,
Wherein the ECU control unit sets an electronic device to cut off power supply based on a current power consumption amount and a predetermined importance. The method according to claim 1,
Wherein the fuel information informing unit guides the charging station closer to a distance that can be reached by consuming the electric power of the battery through the navigation when the amount of power of the battery is smaller than the amount of fuel calculated by the fuel consumption predicting unit An electric car that can manage. The method according to claim 1,
Wherein the fuel information informing unit measures a dark current and an output voltage of the battery and generates a warning message for requesting a check of the battery when the dark current is larger than a preset magnitude or the output voltage is smaller than a preset magnitude An electric vehicle that can manage fuel consumption.

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