CN107505504A - A remote power consumption monitoring system for electric vehicles - Google Patents

Abstract

A remote power consumption monitoring system for an electric automobile belongs to the field of electric automobile remote service and management. The problem of current power consumption monitoring mode, unable audio-visual detection car power consumption is solved. The invention comprises a voltage and current acquisition device, a monitored vehicle main controller, a terminal processing device and a touch input and display device; the voltage and current acquisition device is used for acquiring the voltage and the current of the power supply battery of the monitored vehicle in real time, and transmitting the acquired voltage and current to the terminal processing device in a wireless transmission mode through the main controller of the monitored vehicle; the touch input and display device is used for inputting the time period t to be queried and displaying the power consumption W in the time period t to be queried; and the terminal processing device processes the voltage and the current in the time period t to be inquired according to the recorded time period t to be inquired, so that the power consumption W in the time period t to be inquired is obtained. The invention is mainly used for remotely monitoring the power consumption of the electric automobile.

Description

A remote power consumption monitoring system for electric vehicles

technical field

The invention belongs to the field of electric vehicle remote service and management.

Background technique

The power consumption of the existing batteries is obtained by calculating the SOC percentage. The existing power monitoring function only provides the reduction and change of the power percentage, and the accuracy of the monitoring results is low. In some specific cases, this function does not It cannot accurately reflect the user's power consumption. For example, when the vehicle is empty and fully loaded, the percentage of power consumption cannot intuitively inform the user of the vehicle's power consumption, but can only provide the difference between more and less power consumption. Only the percentage of remaining power can be obtained, so that customers cannot intuitively observe the power consumption of the battery. Therefore, there is an urgent need to provide a monitoring system that can observe the specific situation of battery power consumption.

Contents of the invention

The purpose of the invention is to solve the problem that the existing power consumption monitoring method cannot directly detect the power consumption of automobiles, and the invention provides a remote power consumption monitoring system for electric vehicles.

A remote power consumption monitoring system for electric vehicles, which includes a voltage and current acquisition device, a main controller of the monitored vehicle, a terminal processing device, and a touch input and display device;

The voltage and current acquisition device is used to collect the voltage and current of the battery power supply of the monitored vehicle in real time, and send the collected voltage and current to the terminal processing device through the main controller of the monitored vehicle through wireless transmission;

The touch input and display device is used to enter the time period t to be inquired, and is also used to display the power consumption W in the time period t to be inquired;

The terminal processing device processes the voltage and current in the time period t to be inquired according to the entered time period t to be inquired, so as to obtain the power consumption W in the time period to be inquired.

Preferably, the terminal processing device processes the voltage and current within the time period t to be queried according to the entered time period t to be queried, so as to obtain the power consumption W within the time period to be queried is as follows:

Step 1, divide the time period t to be queried into N time intervals d on average;

Step 2, taking the average value of all voltages and currents in each time interval d, and obtaining the average value of voltages and currents in each time interval d;

Step 3, calculate the energy of the battery power supply of the monitored vehicle in each time interval d through the average value of the voltage and current in each time interval d;

Step 4: Sum the energy of the battery power supply of the monitored vehicle within N time intervals d, so as to obtain the power consumption within the time period t to be queried

in, Indicates the current average value in the i-th time interval d, Indicates the average voltage in the i-th time interval d, N is an integer.

Preferably, the database of the terminal processing device stores preset current and voltage value ranges, and when the value of the collected current or voltage exceeds the preset current or voltage value range, an alarm prompt is issued through the alarm device .

The beneficial effect brought by the present invention is that the remote power consumption monitoring system for electric vehicles described in the present invention can intuitively know the power consumption of the time period t to be inquired according to the operation instruction entered in the time period t to be inquired; By accumulating power consumption and refining the time interval d, the calculation process can be simplified and more accurate data can be obtained.

Description of drawings

FIG. 1 is a schematic diagram of the principle of a remote power consumption monitoring system for an electric vehicle according to the present invention.

detailed description

Specific Embodiment 1: Refer to FIG. 1 to illustrate this embodiment. A remote power consumption monitoring system for electric vehicles described in this embodiment includes a voltage and current acquisition device 1, a main controller 2 of a monitored vehicle, a terminal processing device 3 and Touch input and display device 4;

The voltage and current collection device 1 is used to collect the voltage and current of the battery power supply of the monitored vehicle in real time, and send the collected voltage and current to the terminal processing device 3 through the main controller 2 of the monitored vehicle by wireless transmission;

The touch input and display device 4 is used to enter the time period t to be inquired, and is also used to display the power consumption W in the time period t to be inquired;

The terminal processing device 3 processes the voltage and current in the time period t to be inquired according to the entered time period t to be inquired, so as to obtain the power consumption W in the time period to be inquired.

In this embodiment, the electric vehicle remote power consumption monitoring system can intuitively know the power consumption of the time period t to be inquired according to the operation instruction entered in the time period t to be inquired.

Specific embodiment 2: Refer to FIG. 1 to illustrate this embodiment. The difference between this embodiment and the remote power consumption monitoring system for electric vehicles described in Embodiment 1 is that the terminal processing device 3, according to the input data to be queried In the time period t, the voltage and current in the time period t to be queried are processed, so as to obtain the power consumption W in the time period to be queried is as follows:

Step 1, divide the time period t to be queried into N time intervals d on average;

Step 2, taking the average value of all voltages and currents in each time interval d, and obtaining the average value of voltages and currents in each time interval d;

Step 3, calculate the energy of the monitored vehicle power supply battery in each time interval d through the average value of the voltage and current in each time interval d;

Step 4: Sum the energy of the battery power supply of the monitored vehicle within N time intervals d, so as to obtain the power consumption within the time period t to be queried

in, Indicates the current average value in the i-th time interval d, Indicates the average voltage in the i-th time interval d, N is an integer.

In this embodiment, by accumulating power consumption and refining the time interval d to achieve the purpose of simplifying the entire power consumption process and obtaining more accurate data, the power consumption within the time period t to be queried is obtained.

Specific embodiment 3: Refer to FIG. 1 to illustrate this embodiment. The difference between this embodiment and the electric vehicle remote power consumption monitoring system described in Embodiment 1 is that the database of the terminal processing device 3 stores preset The value ranges of the current and voltage are set, and when the value of the collected current or voltage exceeds the preset value range of the current or voltage, the alarm device 5 will give an alarm prompt.

In this embodiment, it can be known whether the power supply of the monitored vehicle's power supply battery is normal through comparative analysis.

Claims (3)

1. An electric vehicle remote power consumption monitoring system is characterized in that it comprises a voltage and current acquisition device (1), a monitored vehicle master controller (2), a terminal processing device (3) and a touch input and display device ( 4); The voltage and current collection device (1) is used to collect the voltage and current of the battery power supply of the monitored vehicle in real time, and send the collected voltage and current to the terminal for processing through the main controller (2) of the monitored vehicle by wireless transmission device(3); The touch input and display device (4) is used to enter the time period t to be inquired, and is also used to display the power consumption W in the time period t to be inquired; The terminal processing device (3) processes the voltage and current in the time period t to be inquired according to the entered time period t to be inquired, so as to obtain the power consumption W in the time period to be inquired. 2. A remote power consumption monitoring system for electric vehicles according to claim 1, characterized in that the terminal processing device (3), according to the entered time period t to be inquired, the voltage within the time period t to be inquired and current to obtain the power consumption W in the time period to be queried is as follows: Step 1, divide the time period t to be queried into N time intervals d on average; Step 2, taking the average value of all the voltages and currents in each time interval d, and obtaining the average value of the voltage and current in each time interval d; Step 3, calculate the energy of the monitored vehicle power supply battery in each time interval d through the average value of the voltage and current in each time interval d; Step 4: Sum the energy of the battery power supply of the monitored vehicle within N time intervals d, so as to obtain the power consumption within the time period t to be queried in, Indicates the current average value in the i-th time interval d, Indicates the average voltage in the i-th time interval d, N is an integer. 3. The remote power consumption monitoring system for electric vehicles according to claim 1, characterized in that, the database of the terminal processing device (3) stores preset current and voltage value ranges, when the collected When the value of the current or voltage exceeds the value range of the preset current or voltage, the alarm device (5) will give an alarm prompt.