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Intelligent commercial vehicle diesel engine start/stop system

A diesel engine, intelligent technology, applied in the direction of engine motor starting, mechanical equipment, engine components, etc., can solve the problems of development and application that have not been reported, and achieve the effect of reducing emission pollution and improving voltage platform

Active Publication Date: 2015-12-16
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development and application of this technology on commercial vehicle diesel engines has not been reported so far.

Method used

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  • Intelligent commercial vehicle diesel engine start/stop system
  • Intelligent commercial vehicle diesel engine start/stop system
  • Intelligent commercial vehicle diesel engine start/stop system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Such as Figure 4 As shown, an intelligent start-stop system for a diesel engine for a commercial vehicle includes a battery pack, a battery sensor and a controller, a start-stop switch, an ECU, a generator, an enhanced starter, and a diesel engine.

[0035] The voltage of the battery pack is 24V, which is used to provide power for the enhanced starter.

[0036] The battery sensor and controller is used to detect the state parameters of the battery pack and send the state parameters to the ECU; the battery sensor and controller are connected to the ECU through the CAN bus. And according to the state parameters of the battery pack, send control signals to control the work of the generator; the battery sensor and controller have multiple functions such as battery monitoring (SOC, SOF and SOH, etc.), generator control, communication with ECU, and diagnosis.

[0037] The five-mode power generation control strategy is used for intelligent LIN generator control;

[0038] Th...

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Abstract

The invention discloses an intelligent commercial vehicle diesel engine start / stop system, which can realize an idle speed start / stop function, an intelligent power generation function and finished vehicle energy management and optimization on the basis of a reinforcement starter scheme. In order to meet the frequent start and stop requirements of a city bus, a reinforcement starter with long service life is developed; in order to carry out scientific finished vehicle energy management and ensure the safe and reliable start of a finished vehicle, an intelligent LIN generator is matched, and a 24V lead-acid cell controller LBMS is developed, so that the charge state, the function state and the health state of a cell are monitored; START / STOP system control and diagnosis logic are developed to be perfectly integrated with a fuel oil control system of a diesel engine ECU. The intelligent generator carries out communication with the cell controller LBMS by LIN, and the cell controller LBMS carries out communication with a generator ECU by a CAN. According to the intelligent start / stop system, signals of a finished vehicle, an engine, the cell, the generator and the like are obtained by the CAN and a LIN network, and the diesel engine START / STOP control, generator control and cell monitoring are scientifically and reliably realized.

Description

technical field [0001] The invention belongs to the technical field of diesel engines for commercial vehicles, in particular to an intelligent start-stop system for diesel engines for commercial vehicles. Background technique [0002] The idling start-stop technology is relatively mature in passenger cars, which can save fuel by 3% to 8% and reduce emissions by 8% to 10%. Common technical solutions include BSG motor solution and enhanced starter solution, respectively as figure 1 , figure 2 shown. [0003] Among them, the use of the BSG scheme represents Mercedes-Benz, Peugeot, etc.; the use of the enhanced starter scheme represents BMW, Volkswagen, etc. [0004] The BSG scheme is connected to the engine through a belt transmission mechanism, which can be used as a starter when the hot engine is started, and can also replace the function of the original generator; this scheme generally needs to retain the traditional starter to ensure the reliability of low-temperature s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02N11/08
CPCY02T10/40
Inventor 陈波宁杨瑜吴峰胜陈建业胡维嘉季峰
Owner CHINA FIRST AUTOMOBILE
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