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Electric refrigerated truck power supply system and control method thereof, electric refrigerated truck

A technology for power supply systems and refrigerated vehicles, applied to the power supply of electric heating circuits, motor vehicles, trucks, etc., can solve the problems that relays cannot be detected and processed in time, the status is not monitored and fed back in time, and there is no emergency measure for backup power schemes, etc. To achieve double protection, reduce the connection of pipelines, and reduce the effect of cooling loss

Inactive Publication Date: 2018-06-26
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the power system does not monitor and feedback the status of each relay in time, which may lead to the failure to detect and deal with it in time when the relay fails, and there is no backup power plan as an emergency measure, which will cause temperature fluctuations in the compartment and affect the quality of transported goods

Method used

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  • Electric refrigerated truck power supply system and control method thereof, electric refrigerated truck
  • Electric refrigerated truck power supply system and control method thereof, electric refrigerated truck
  • Electric refrigerated truck power supply system and control method thereof, electric refrigerated truck

Examples

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Embodiment 1

[0048] Such as figure 1 As shown, this embodiment discloses a power supply system for an electric refrigerated vehicle, which includes:

[0049] Power battery 1, which can output 540V DC, and power battery 1 can provide DC high voltage for the refrigeration unit;

[0050] Mains power interface 2, which can be connected to the mains, which can output 380V alternating current, and the mains can provide AC high-voltage power for the refrigeration unit;

[0051] Battery 3, which can provide 24V low-voltage electricity;

[0052] A first-level switch group, which is a double-throw switch K4, the double-throw switch K4 is provided with a moving end d, a moving end e, and a non-moving end f, and the double-throw switch K4 is normally closed to the moving end d;

[0053] A secondary switch group, which is a double-throw switch K3, the double-throw switch K3 is provided with a moving end a, a moving end b, and a non-moving end c, and the double-throw switch K3 is normally closed to th...

Embodiment 2

[0065] Such as image 3 The present embodiment shown provides an electric refrigerated vehicle, which includes an operation panel, a chassis 9, a condenser 14, an evaporator 15, a partition 13, a refrigerated compartment 12, and the power supply system for an electric refrigerated vehicle described in Embodiment 1. The device 14 is arranged outside the refrigerated compartment 12, the evaporator 15 is arranged inside the refrigerated compartment 12, the refrigerated compartment 12 is fixed on the chassis 9, and the refrigerated compartment 12 is divided into a refrigerated compartment 11 and a frozen compartment 10 by a partition 13.

[0066] Wherein, the temperature of the refrigerating compartment 11 can be set at 0-20°C, and the temperature of the freezing compartment 10 can be set at -30-0°C. The electronic fan and temperature sensor are arranged inside the refrigerated compartment 12 , and the partition 13 is provided with a square air duct, and the electronic fan is used...

Embodiment 3

[0069] This embodiment provides a control method for a power supply system of an electric refrigerated vehicle, which is applied to the power supply system of an electric refrigerated vehicle described in Embodiment 1.

[0070] Such as Figure 4 As shown, the main flow of the control method of the electric refrigerated vehicle power supply system includes the following steps:

[0071] Step S1 is to detect whether there is mains access, specifically, the control module detects whether the mains interface is connected to the mains, if the mains interface is connected to the mains, then perform step S3, if the mains interface is not connected to the mains, Then step S2 is executed.

[0072] Step S2 is to enter the vehicle power mode, specifically, the power battery supplies power to the refrigeration unit.

[0073] Step S3 is to enter the mains power mode, specifically, the mains supplies power to the refrigeration unit through the mains interface.

[0074] Step S4 is to detec...

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Abstract

The invention provides an electric refrigerated truck power supply system and a control method thereof, and an electric refrigerated truck. The electric refrigerated truck power supply system comprises a power cell, a storage battery, a control module and a refrigerating unit; the refrigerating unit comprises a high voltage electric appliance set and a low-voltage electric appliance set; the highvoltage electric appliance set and the low-voltage electric appliance set are powered by the power cell; a DC / DC module is installed between the power cell and the low-voltage electric appliance set;a first-level switch block is installed between the DC / DC module and the low-voltage electric appliance set; the storage battery is connected with the low-voltage electric appliance through the first-level switch block. When the DC / DC module breaks down, the control module controls the operation of the first-level switch block, so that the power battery stops supplying power to the low-voltage electric appliance set, and power is supplied to the low-voltage electric appliance set by the storage battery. The setting of the first-level switch block and the storage battery ensures that when the DC / DC module fails, the low-voltage electric appliance set can also work normally, and the quality of the loaded items will not be affected.

Description

technical field [0001] The invention relates to the field of electric vehicle power supply, in particular to an electric refrigerated vehicle power supply system, a control method thereof, and an electric refrigerated vehicle. Background technique [0002] The Chinese invention patent application with the application number CN201510027273.X discloses an electric cold-storage refrigerated vehicle. The refrigerated vehicle includes a refrigeration unit and an electric energy system for supplying power to the refrigeration unit. The electric energy system includes a battery and a mains interface. The power supply control circuit guarantees the interlocking function of the battery and the mains power supply and the interlocking function of the mains power supply and driving through the interlocking relay. However, the power system does not monitor and feedback the status of each relay in time, which may lead to failure to detect and deal with it in time when the relay fails, and...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/32B60L1/10
CPCB60H1/00428B60H1/3232B60L1/10B60L2200/36Y02T10/88
Inventor 邓益成周文杰李桥范存贺
Owner BYD CO LTD
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