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Hybrid commercial vehicle electrical system using solar energy and waste gas waste heat power generation

A technology of waste heat power generation and hybrid power, applied in hybrid vehicles, electric braking systems, electric vehicles, etc., can solve the problems of engine fuel economy and power performance optimization, recovery, engine power assistance and braking energy, etc. To achieve the effect of improving fuel economy and power performance

Active Publication Date: 2020-04-10
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency that the dual-source power generation system in the above-mentioned background technology cannot provide power assistance and braking energy recovery for the engine, and the fuel economy and power performance of the engine need to be optimized, and provide a solar energy and exhaust gas waste heat power generation system Hybrid commercial vehicle electrical system

Method used

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  • Hybrid commercial vehicle electrical system using solar energy and waste gas waste heat power generation
  • Hybrid commercial vehicle electrical system using solar energy and waste gas waste heat power generation

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Embodiment 1

[0032] See figure 1 As shown, an embodiment of the present invention provides an electrical system for a hybrid commercial vehicle that generates power from solar energy and waste heat from exhaust gas, including:

[0033] The first power generation unit. The circuit system of the first power generation unit is 48 volts. The first power generation unit includes a BSG motor and a solar battery. The BSG motor is connected to the crankshaft pulley of the engine through a belt, and the BSG motor is electrically connected to the first battery. The solar cell is provided with a first DCDC converter, and the solar cell is electrically connected to the first storage battery through the first DCDC converter.

[0034] During driving, the BSG motor can provide power assistance for the engine. When the vehicle receives a starting command, the first battery outputs electric energy to drive the BSG motor to run. The BSG motor transmits the starting torque to the crankshaft pulley through the be...

Embodiment 2

[0047] See figure 1 As shown, the embodiment of the present invention provides a hybrid commercial vehicle electrical system for generating electricity from solar energy and waste heat from exhaust gas. The difference between this embodiment and Embodiment 1 is that the first power generation unit also includes an air conditioning compressor and a power control unit. The machine is electrically connected in parallel with the BSG motor, the solar cell, and the first battery. The power control unit is electrically connected to the BSG motor and the first battery, and the power control unit is used to detect the remaining power of the first battery and control the BSG motor to charge the first battery.

[0048] The voltage of the air conditioner compressor is 48 volts, the voltage of the BSG motor is 48 volts, the direct current from the solar cell is converted into 48 volts direct current through the first DCDC converter, and the voltage of the first battery is 48 volts. The BSG ...

Embodiment 3

[0050] See figure 1 As shown, the embodiment of the present invention provides a hybrid commercial vehicle electrical system for generating electricity from solar energy and waste heat from exhaust gas. The difference between this embodiment and Embodiment 1 is that the second power generation unit also includes a vehicle load and a power control unit. The load is electrically connected in parallel with the smart generator, the waste heat power generation device, and the second battery. The power control unit is electrically connected to the second battery and the smart generator, and the power control unit is used to detect the remaining power of the second battery and control the smart generator to charge the second battery.

[0051] The voltage of the vehicle load is 24 volts, the voltage of the smart generator is 24 volts, the direct current generated by the waste heat power generation device is converted into 24 volts direct current through the second DCDC converter, and th...

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Abstract

The invention discloses a hybrid commercial vehicle electrical system using solar energy and waste gas waste heat power generation, and belongs to the field of electric control of commercial vehicles.The system comprises: a first power generation unit, wherein the first power generation unit comprises a BSG motor and a solar cell, the BSG motor is connected with a crankshaft pulley of an engine through a belt, the BSG motor is electrically connected with a first storage battery, and the solar cell is provided with a first DCDC converter; and a second power generation unit, wherein the secondpower generation unit includes an intelligent generator and a waste gas waste heat power generation device, the intelligent generator is connected with the crankshaft pulley of the engine through a belt, the intelligent generator is electrically connected with the second storage battery, the waste gas waste heat power generation device is provided with a second DCDC converter, a third DCDC converter is connected to the first storage battery and the second storage battery, and the first storage battery charges the second storage battery through the third DCDC converter. Energy saving of a wholevehicle system is achieved, so that the purposes of reducing the load of the engine and saving oil of the whole vehicle are achieved, and the fuel economy and the power performance of the engine areimproved.

Description

Technical field [0001] The invention relates to the technical field of commercial vehicle electrical control, in particular to a hybrid commercial vehicle electrical system that generates power from solar energy and waste heat from exhaust gas. Background technique [0002] The power for the operation of a car is provided by the car's engine, and the work of the car's engine requires the combustion of fuel. According to different fuels, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle engines, and hybrid engines. As the heart of the car, the car engine has a great influence on the overall power, economy and environmental protection of the car. Therefore, improving the performance of the engine is of great significance for promoting the development of the car industry. As far as the current level of technology is concerned, the output power of a car engine only accounts for 30% to 42% (diesel engine) or 25% to 40% (gasoline engine) of the ...

Claims

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Application Information

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IPC IPC(8): B60K6/46B60L7/10B60K16/00B60R16/03B60K6/28B60L50/61B60L50/90
CPCB60K6/28B60K6/46B60K16/00B60K2016/003B60L7/10B60R16/0307B60L50/61B60L50/90Y02T10/62Y02T10/70Y02T10/90
Inventor 钟小华王华武季晓刚王必璠康明郭虎
Owner DONGFENG COMML VEHICLE CO LTD
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