Vehicle-mounted turbocharger monitoring system and method for motor vehicle

Abstract

The invention belongs to the technical field of turbocharging, and particularly relates to a vehicle-mounted turbocharger monitoring system and method for a motor vehicle. According to the technical scheme, the vehicle-mounted turbocharger monitoring system comprises an A / D convertor, a data processor, a memorizer, a supercharger speed sensor, a compressor discharge pressure sensor, a compressor discharge temperature sensor, a turbine motor intake pressure sensor and a turbine motor intake temperature senor. The supercharger speed sensor is installed on a middle body of a turbocharger, the compressor discharge pressure sensor and the compressor discharge temperature sensor are installed on a compressed gas exhaust pipeline at the outlet position of a compressor of the turbocharger, and the turbine motor intake pressure sensor and the turbine motor intake temperature sensor are installed on a waste gas intake pipeline at the inlet position of a turbine motor of the turbocharger. The vehicle-mounted turbocharger monitoring system carries out performance testing on the turbocharger which is installed on the motor vehicle and is in actual use under various working conditions, and basic data is provided for more excellent matching and following improvement of the turbocharger.

Description

technical field [0001] The invention belongs to the technical field of turbocharging, and in particular relates to a monitoring system and method for a turbocharger mounted on a motor vehicle. Background technique [0002] Traditionally, the performance measurement and matching test of the turbocharger are carried out on a fixed special bench test frame in the room, and the test is basically carried out with fixed boundary conditions. However, the actual exhaust process of the reciprocating internal combustion engine cylinder is a periodic change process, which makes the turbocharger installed downstream of the exhaust manifold work in an environment of pressure fluctuations, making the actual working process of the turbocharger There is a deviation from the design point, and the turbocharger and the engine cannot be well matched, resulting in the matching engine not being able to produce ideal power and fuel economy, and unable to give full play to the advantages of turboch...

AI Technical Summary

Problems solved by technology

However, the actual exhaust process of the reciprocating internal combustion engine cylinder is a periodic change process, which makes the turbocharger installed downstream of the exhaust manifold work in an environment of pressure fluctuations, making the actual working process of the turbocharger There is a deviation from the design point, and the turbocharger and the engine cannot be well matched, resulting in the matching engine not being able to produce ideal power and fuel economy, and unable to give full play to the advantages of turbocharging technology; and currently there is no dedicated turbocharger on the market. On-board turbocharger performance monitoring system for road test

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