CN202641411U - Travel range enlargement equipment of electric vehicle - Google Patents

Abstract

The utility model discloses a range extending device for an electric vehicle, which belongs to the field of electric vehicles. The range extender is composed of a switch control device and a range extender assembly. The switch control device includes a first switch, a second switch, a switch controller and a current sensor. The vehicle power supply provides power to the motor controller through the first switch, and the range extender assembly passes through The second switch supplies power to the motor controller, and when the range extender component supplies power to the motor controller, the switching controller controls the second switch to conduct, thereby realizing the switching of the power supply and increasing the mileage. In addition, when the current sensor detects that the motor controller has successfully received the power provided by the range-extending component, the switching controller controls the first switch to be turned off, which prevents sudden power failure during the power switching process and improves the driving safety of the car and when the first switch is turned off, the range-extending component only needs to provide power to the motor controller instead of charging the vehicle power supply, thereby further increasing the mileage of the electric vehicle.

Description

Electric vehicle range extender

technical field

The utility model relates to the field of automobiles, in particular to a range extender for electric vehicles.

Background technique

Currently, there are various drawbacks in the fuel generator vehicles commonly used, such as low energy utilization rate and serious pollution. With people's awareness of energy saving and environmental protection, electric vehicles are getting more and more attention. However, limited by the storage capacity of batteries, compared with fuel vehicles, pure electric vehicles have the disadvantages of short mileage and high cost, which brings great inconvenience to people's travel.

Utility model content

The purpose of the utility model is to provide a range extending device for an electric vehicle, which not only increases the mileage of the electric vehicle, but also has a relatively simple circuit and low manufacturing cost.

In order to achieve the above object, the utility model provides a range extender for an electric vehicle, which is composed of a range extender component and a switch control device, wherein the range extender component is used to provide power to the motor controller, and the switch control device is used to switch the The power supply of the vehicle power supply to the motor controller is switched to provide power to the motor controller by the range extender component, which is characterized in that: the switch control device includes a second switch and a switch controller, wherein the range extender component supplies power to the motor through the second switch The controller provides power;

The second switch is configured to be in an off state when the vehicle power supply provides power to the motor controller, and to be in an on state when the range extender component provides power to the motor controller;

The switching controller is used to send a starting signal to the range-extending assembly when the range-extending assembly is required to provide power to the motor controller;

The range extender is used to start power generation after receiving the start signal, and send a power generation success signal to the switching controller after power generation is successful;

The switching controller is used to control the second switch to be turned on after receiving the power generation success signal, and the range extender component starts to provide power to the motor controller.

The switching control device also includes a first switch and a current sensor, wherein the vehicle power supply supplies power to the motor controller through the first switch, and the first switch is configured to be in a conducting state when the vehicle power supply supplies power to the motor controller, And when the motor controller successfully receives the power provided by the range extender component, it is in the disconnected state;

The current sensor is used to detect the current value of the power supply provided by the range extender component to the motor controller and send it to the switching controller;

The switching controller is used to determine whether the current value detected by the current sensor is greater than 0: if it is determined that the current value is greater than 0, it means that the motor controller has successfully received the power provided by the range extender component, and the switching controller controls the first The switch opens and the vehicle power supply stops providing power to the motor controller.

The range extension component includes a start controller, an internal combustion generator set and a rectifier filter, wherein the start controller is used to receive a start signal sent by the switching controller, and control the internal combustion generator set to generate electricity after receiving the start signal;

The internal combustion generator set is used to send a power generation success signal to the start controller and transmit the generated AC power to the rectifier filter after power generation is successful;

The starting controller is used to forward the power generation success signal to the switching controller;

The rectification filter is used to convert the AC power into a DC power, and provide power to the motor controller through the second switch.

The switching control device also includes a display instrument, which is used to display the state of whether the range extender component starts to generate power, the state of whether the power generation is successful, and the current value detected by the current sensor.

The switching control device also includes a switching switch, which is used for the switching controller to send an activation signal to the range extender assembly when the switching switch is pressed.

The switch control device also includes a first socket, and each communication line of the switch control device is plugged into the first socket.

The range extender assembly also includes a second socket, and each communication line of the range extender assembly is plugged into the second socket.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. The switching control device in the utility model adopts a second switch and a switching controller. The range extending component supplies power to the motor controller through the second switch. When the vehicle power supply is insufficient, the switching controller controls the range extending component to start generating electricity. And after the range-extending component generates electricity successfully, the second switch is controlled to conduct, and the range-extending component starts to provide power to the motor controller, thereby not only increasing the mileage of the electric vehicle, but also having a relatively simple circuit and reducing manufacturing costs;

2. The switching control device in the utility model adopts a first switch and a current sensor. The vehicle power supply provides power to the motor controller through the first switch, and the current sensor is used to detect the current value of the power supply provided by the range extender component to the motor controller. If the current value is greater than 0, it means that the motor controller has received the power provided by the range extender component, the switching controller controls the first switch to be turned off, and the vehicle power supply stops supplying power to the motor controller. On the premise of the power supply provided by the process component, the switching controller controls the first switch to be turned off, which can prevent the motor controller from suddenly losing power during the power switching process and improve the safety of the car; and when the first switch is turned off , the range-extending component only needs to provide power to the motor controller, instead of charging the vehicle power supply, so as to further increase the mileage of the electric vehicle and achieve better economic benefits;

3. The range-extending component in the utility model adopts a start-up controller, an internal combustion generator set and a rectifier filter. The start-up controller receives the start-up signal sent by the switching controller and controls the internal-combustion generator to generate electricity after receiving the start-up signal. After the power generation is successful, the generator set sends a power generation success signal to the start controller and transmits the generated AC power to the rectifier filter, and the rectifier filter converts the AC power into DC power. Generator set, which combines electric energy and fuel oil to further increase the mileage of electric vehicles and reduce costs;

4. The switching control device in the utility model adopts a switching switch, so that the switching controller can not only automatically control the power generation of the range-extending component, but also manually control the power generation of the range-extending component;

5. The switching control device in the utility model adopts a display instrument, which respectively displays whether the range extender component starts to generate power, whether the power generation is successful, and the current value detected by the current sensor, realizing a good man-machine interface, which is convenient for the driver Understand the whole power switching process;

6. In the utility model, all the communication lines of the switching control device are inserted into the first socket, and all the communication lines of the range extender component are inserted into the second socket, so that the communication lines between the two are compared. Neat, especially for cases where the switching control is separated from the range extender.

Description of drawings

The utility model will be explained by way of example and with reference to the accompanying drawings, wherein:

Fig. 1 is the schematic circuit diagram of the utility model.

Marks in the figure: 1 is the range extender component, and 2 is the switching control device.

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and/or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

As shown in Figure 1, the electric vehicle range extender is composed of a range extender assembly 1 and a switching control device 2, wherein the range extender assembly 1 is used to provide power to the motor controller, and the motor controller provides power to the motor M in the electric vehicle The power supply controls the operation of the motor; the switching control device 2 is used to switch the power supply from the vehicle power supply to the motor controller to the power supply from the range extender component to the motor controller.

The switching control device 2 includes a switching switch, a display instrument, a switching controller, a first switch, a second switch, a current sensor and a first socket. The second socket is formed, wherein the range extender assembly 1 provides power to the motor controller through the second switch, and the second switch is in an off state when the vehicle power supply provides power to the motor controller, and the range extender assembly 1 supplies power to the motor The controller is in the conduction state when it provides power; the vehicle power supply provides power to the motor controller through the first switch, and the first switch is in the conduction state when the vehicle power supply provides power to the motor controller. The motor controller provides power in the disconnected state.

When the range-extending component is required to provide power to the motor controller, the switching controller can automatically detect the remaining power of the vehicle power supply, and if it is determined that the remaining power of the vehicle power supply is insufficient, a start signal is sent to the start-up controller in the range-extending component. The toggle switch can be pressed manually so that the toggle controller sends an activation signal to the activation controller. The start controller is used to control the internal combustion generator set to start generating power after receiving the start signal; the internal combustion generator is used to send a power generation success signal to the start controller and transmit the generated AC power to the rectifier filter after the power generation is successful; The starting controller is used for forwarding the power generation success signal to the switching controller; the rectification filter is used for converting the AC power supply into a DC power supply. The switch controller is used to control the second switch to be turned on when receiving the power generation success signal, and the rectifier filter supplies power to the motor controller through the second switch, that is, the range extender component supplies power to the motor controller through the second switch. The motor controller provides power. By controlling the conduction state of the second switch, the conversion of the power supply provided by the range extender component to the motor controller is realized, which increases the mileage of the electric vehicle; in addition, the internal combustion generator set that realizes oil-to-electric conversion is used in the range extender component. The combined use of electric energy and fuel oil further increases the mileage of electric vehicles and reduces costs.

The current sensor in the switching control device 2 is used to detect the current value of the power supply provided by the range extender component to the motor controller and send it to the switching controller; the switching controller is used to judge whether the current value detected by the current sensor is greater than 0: if If the current value is determined to be greater than 0, it means that the motor controller has successfully received the power provided by the range extender component, the switching controller controls the first switch to be turned off, and the vehicle power supply stops supplying power to the motor controller. On the premise that the motor controller has successfully received the power provided by the range-extending component, the switching controller controls the first switch to be turned off, which can prevent the motor controller from suddenly losing power during the power switching process and improve the safety of electric vehicles. and when the first switch is turned off, the range-extending component only needs to provide power to the motor controller instead of charging the vehicle power supply, thereby further increasing the mileage of the electric vehicle and having better economic benefits.

The display instrument in the switching control device 2 is used to display the status of whether the range extender component starts generating power, whether the power generation is successful or not, and the current value detected by the current sensor. When the switching controller sends a start signal and detects that it is connected to the range-extending component, the display instrument displays that the range-extending component starts to generate power through a form such as an LED flash; In the form of a flashing light, it shows that the range-extending component has successfully generated electricity; when the switching controller receives the current value detected by the current sensor, the display instrument displays the current value through a digital display tube and other forms. The display instrument is used to realize a good human-machine interface, which is convenient for the driver to understand the whole power switching process.

Each communication line of the switching control device 2 is inserted into the first socket, and each communication line of the range extender assembly is inserted into the second socket, so that the communication lines between the two are relatively neat, especially suitable for The case where the switching control device is separated from the range extender assembly.

In the first embodiment of the present invention, the first switch and the second switch may be contactors, relays and the like.

The utility model is not limited to the aforementioned specific embodiments. The utility model extends to any new feature or any new combination disclosed in this specification, as well as the steps of any new method or process or any new combination disclosed.

Claims (7)

1. battery-driven car extended-range device, by increasing journey assembly (1) and switching control (2) forms, wherein this increases journey assembly (1) for providing power supply to electric machine controller, and this switching control (2) is used for providing electrical source exchange to become to increase journey assembly (1) by this to electric machine controller by Vehicle Power provides power supply to electric machine controller, it is characterized in that: this switching control (2) comprises second switch and switch controller, and wherein increasing journey assembly (1) provides power supply by this second switch to electric machine controller;

Described second switch is used for being in off-state at Vehicle Power when electric machine controller provides power supply, and is in conducting state increasing journey assembly (1) when electric machine controller provides power supply;

Described switch controller is used for sending actuation signal when needs increase journey assembly (1) and provide power supply to electric machine controller and increases journey assembly (1) to this;

The described journey assembly (1) that increases is used for beginning generating after receiving actuation signal, and transmission is generated electricity into function signal to this switch controller after generating electricity successfully;

Described switch controller is used for this second switch conducting of control after receiving this to generate electricity into function signal, and this increases journey assembly (1) beginning provides power supply to electric machine controller.

2. battery-driven car extended-range device according to claim 1, it is characterized in that: this switching control (2) also comprises the first switch and current sensor, wherein Vehicle Power provides power supply by this first switch to electric machine controller, described the first switch is used for being in conducting state at Vehicle Power when electric machine controller provides power supply, and successfully receives at electric machine controller and to be in off-state when increasing the power supply that journey assembly (1) provides;

This current sensor is for detection of the current value that increases the power supply that journey assembly (1) provides to electric machine controller and send to this switch controller;

This switch controller is used for judging that whether current value that this current sensor detects is greater than 0: if judge this current value greater than 0 then represent that this electric machine controller successfully receives this and increases the power supply that journey assembly (1) provides, this switch controller is controlled this first switch and is disconnected, and Vehicle Power stops to provide power supply to electric machine controller.

3. battery-driven car extended-range device according to claim 1, it is characterized in that: this increases journey assembly (1) and comprises startup controller, internal combustion engine generator group and rectifier filer, wherein said startup controller is used for receiving the actuation signal that this switch controller sends, and this internal combustion engine generator group generating of control after receiving this actuation signal;

Described internal combustion engine generator group is used for generating electricity into function signal in the successfully rear transmission of generating electricity and is transferred to this rectifier filer to this startup controller and with the source of AC that produces;

Described startup controller is used for that this is generated electricity into function signal and is transmitted to this switch controller;

Described rectifier filer is used for this source of AC is converted to direct supply, and provides power supply by this second switch to electric machine controller.

4. battery-driven car extended-range device according to claim 1 and 2, it is characterized in that: this switching control (2) also comprises display instrument, this display instrument be used for to show the state that increases journey assembly (1) and begin whether to generate electricity, the state of generating success or not, and the current value that detects of current sensor.

5. described battery-driven car extended-range device according to claim 4, it is characterized in that: this switching control (2) also comprises change-over switch, this change-over switch is used for that this switch controller starts actuation signal to increase journey assembly (1) to this when pressing.

6. battery-driven car extended-range device according to claim 5, it is characterized in that: this switching control (2) also comprises the first socket, each bar communication line of this switching control (2) all inserts in this first socket.

7. battery-driven car extended-range device according to claim 3, it is characterized in that: this increases journey assembly (1) and also comprises the second socket, and this each bar communication line that increases journey assembly (1) all inserts in this second socket.

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