Energy efficient vehicle powertrain

Abstract

The invention relates to an energy-saving vehicle power system which is characterized in that 'air suction and compression' actions and 'ignition explosion, doing work by expansion and exhaust' actions of a traditional automobile internal-combustion engine are separated and can independently run, an air storage device (storing, dispensing and compressing air) is added, and braking energy is recycled by compressing the air. A use mode of vehicle energy and a working mode of a power core are optimized, and the use efficiency of the vehicle energy can be remarkably improved. The system has the advantages that the air supply quantity and the expansion ratio can be continuously changed through a fuel pneumatic motor outputting power, wide power output can be obtained, heat engine efficiency can be improved, the fuel pneumatic motor can serve as a pure pneumatic motor for working without consuming fuels and can instantly start and stop as needed, idling energy consumption is avoided, vehicle kinetic energy is recycled by compressing the air when an automobile brakes, energy use efficiency is improved, and the contradiction between the 'power performance' and 'fuel economy' in the traditional automobile is improved, so that the automobile has excellent power performance and fuel economy.

Description

1. Technical field [0001] The energy-saving vehicle power system involved in the invention belongs to the field of automobile power systems. 2. Background technology [0002] There are obvious deficiencies in the traditional automobile power system: the automobile uses a single piston internal combustion engine as the only power source; the "compression ratio" limitation of the internal combustion engine affects its thermal energy utilization efficiency; the braking energy cannot be recycled; the automobile "power performance" and "fuel economy "There are sharp conflicts between them; in the generally congested urban traffic, frequent braking and stop-and-go congestion result in low energy utilization efficiency of vehicles. The defects of traditional automobile power system have caused huge waste in economy and aggravated environmental pollution. Therefore, optimizing and improving automobile power system has great practical significance. As an optimization and improvement...

AI Technical Summary

Problems solved by technology

[0002] There are obvious deficiencies in the traditional automobile power system: the automobile uses a single piston internal combustion engine as the only power source; the "compression ratio" limitation of the internal combustion engine affects its thermal energy utilization efficiency; the braking energy cannot be recycled; the automobile "power performance" and "fuel economy "There are sharp conflicts between them; in the generally congested urban traffic, frequent braking and stop-and-go congestion result in low energy utilization efficiency of vehicles.

However, gasoline-electric hybrid technology is constrained by unfavorable factors such as low efficiency in the conversion process of "mechanical energy→electrical energy→mechanical energy", high system cost, and complicated technology. The power system has significant advantages, but it is difficult to completely replace the traditional vehicle power system in practical applications

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