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Starting hybrid power supply for diesel engine

A composite power supply, diesel engine technology, applied in multiple hybrid/electric double layer capacitors, circuits, current collectors, etc., can solve the problems of high production cost, impossible diesel engine start-up power supply for capacitors, no research on super capacitors, etc. The discharge rate, the effect of alleviating the peak discharge process, and prolonging the service life

Inactive Publication Date: 2016-03-09
HUBEI SHENGRONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In all the above-mentioned invention patents, the specific solution is to use the expensive energy storage supercapacitor as the power source of the electric vehicle and as the energy storage device of the car. As for the starting power supply of the diesel vehicle, whether the supercapacitor can play a role depends No research (currently the main energy storage is organic supercapacitors, based on their high production costs, this kind of capacitors cannot be used as a starting power supply for diesel engines)

Method used

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  • Starting hybrid power supply for diesel engine
  • Starting hybrid power supply for diesel engine
  • Starting hybrid power supply for diesel engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: Measuring the current and voltage at the moment of starting a diesel engine with a separate battery

[0036] This part of the experiment was completed in the bench test center of Xiangyang Dongfeng Automobile Electric Co., Ltd. The lead-acid battery used is a brand-new Camel 80Ah lead-acid battery with a rated voltage of 12V. The final voltage of the two batteries connected in series is 25.1V. , The measured internal resistance is 17.4mΩ. Connect the assembled battery to the starter motor of the stand. The power of the starter motor is 6-8kw, the rated voltage is 24V, the model of the diesel engine is Cummins ISDe-270-30, and the rated power of the diesel engine is 198kw. This diesel engine is equipped with a generator with a maximum output voltage of 28V and a maximum output current of 90A. After the power supply is connected, the diesel engine is started to ignite. Due to the floating charge, the final voltage of the lead-acid battery reaches 28V. The...

Embodiment 2

[0039] Embodiment 2: The discharge response time of the storage battery part and the capacitor part

[0040] Through theoretical knowledge, lead-acid batteries are chemical batteries, and there is a time for chemical reactions to occur during the discharge process, while the charging and discharging process of inorganic supercapacitors is a physical process, and it takes a certain amount of time for chemical reactions to occur, so the discharge process of the capacitor Will it be faster than the battery, resulting in inconsistent peak current discharge time, and ultimately fail to achieve the desired effect. In order to complete the above experiment, we used two more sophisticated fluke clamp meters and a Japanese oscilloscope for the experiment. The model of diesel engine used in this experiment is YC6105QC, the rated power is 105kw, and the starter power is 6.5kw. The voltage of the diesel engine starting compound power supply used is 25.1V, and the internal resistance is ...

Embodiment 3

[0045] Example 3: Influence of Internal Resistance on the Peak Current Sharing Ratio of Diesel Engine Starting Composite Power Supply

[0046] The diesel engine of Example 2 is also used, and capacitors with different internal resistances are used to connect batteries in parallel. The specific measurement and detection are the same as in Example 2. In order to ensure the accuracy of the results, two measurements were performed for each combination of capacitor pack and storage battery pack, and the results are shown in Table 1:

[0047] Table 1 The influence of the internal resistance of the battery and the internal resistance of the capacitor on the proportion of the peak current that the capacitor bears.

[0048]

[0049] It can be seen from Table 1 that the peak current that the capacitor can bear mainly depends on the internal resistance of the capacitor. The smaller the internal resistance of the capacitor, the larger the proportion it bears according to Ohm's law. I...

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Abstract

The invention provides a starting hybrid power supply for a diesel engine. The starting hybrid power supply comprises a lead-acid storage battery module A and a supercapacitor module B, wherein the supercapacitor module B is an inorganic system high-voltage supercapacitor; the lead-acid storage battery module A is arranged in a plastic housing with a plurality of grooves; single lead-acid storage batteries are connected in series or in parallel to achieve rated voltage or capacity; likewise, single inorganic system high-voltage supercapacitors are connected in series or in parallel to achieve rated voltage; and a positive electrode and a negative electrode of the formed supercapacitor module B are connected in parallel with a positive electrode and a negative electrode of the lead-acid storage battery module A to form the hybrid power supply. According to the starting hybrid power supply, the capacitor part can provide relatively high peak current output and a certain proportion of average current output, so that the capacity of the lead-acid storage battery part can be reduced, the usage amount of lead electrode plates for manufacturing the lead-acid storage battery part is lowered, and the environmental pollution is alleviated; and the service life of the lead-acid storage battery is prolonged.

Description

technical field [0001] The invention relates to the technical field of chemical power sources, and belongs to a composite power source for starting a diesel engine. The composite power source includes a lead-acid storage battery and an inorganic supercapacitor. Background technique [0002] As a kind of energy storage battery, lead-acid batteries are widely used in various fields. Lead-acid batteries have mature technology, low price and high safety, but their specific energy and specific power are relatively low, while lithium batteries, nickel batteries and supercapacitors have High specific energy, specific power and cycle life, but this kind of high-performance battery is expensive. [0003] Therefore, as CN101841175B provides a composite power supply system, mainly composed of lead-acid battery cells and battery packs with high power characteristics, wherein the high power characteristics batteries are lithium batteries, nickel metal hydride batteries and electrochemica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M16/00H01M10/12H01G11/10H02J7/00
CPCH01G11/10H01M10/12H01M16/00H02J7/00Y02E60/10Y02E60/13Y02P70/50
Inventor 陈辉陈楠
Owner HUBEI SHENGRONG TECH CO LTD
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