Control method for hybrid bus

Abstract

The invention discloses a control method for hybrid bus. Through real-time monitoring of number of buses which have the same route in roads ahead with the fixed length, the method divides the jam conditions in the roads into several levels. According to different jam levels, the method sets allocation method for the different energy of the motor and driving power, in order to realize the most optimal energy-saving emission-reducing control method in roads with different jam conditions.

Description

technical field [0001] The invention relates to a bus control method, in particular to a hybrid bus control method for congested road sections. Background technique [0002] With the demonstration operation of hybrid electric buses in large and medium-sized cities in China, its remarkable energy-saving and emission reduction effects have been unanimously recognized by people, and hybrid electric buses have also been more widely used. However, as urban traffic becomes more and more congested , especially in areas with a large passenger flow, because buses have fixed routes and cannot bypass congested roads, this makes the energy-saving and emission-reducing effect of hybrid buses more obvious. If the control strategies of the road sections are the same, the fuel economy will inevitably be not optimal. Therefore, the control strategies for different congestion situations are of positive significance for improving the energy-saving and emission-reduction effects of hybrid buses...

AI Technical Summary

Problems solved by technology

[0002] With the demonstration operation of hybrid electric buses in large and medium-sized cities in China, its remarkable energy-saving and emission reduction effects have been unanimously recognized by people, and hybrid electric buses have also been more widely used. However, as urban traffic becomes more and more congested , especially in areas with a large passenger flow, because buses have fixed routes and cannot bypass congested roads, this makes the energy-saving and emission-reducing effect of hybrid buses more obvious. If the control strategy of the road section is the same, it will inevitably lead to the suboptimal fuel economy. Therefore, the control strategy for different congestion situations is of positive significance for improving the energy saving and emission reduction effect of hybrid buses.

[0003] Some existing control strategies for congested roads are generally driven by electricity when congested. Although reducing the low-efficiency operation of the engine in congested roads is indeed helpful for energy saving and emission reduction, for hybrid buses, the existing The power is limited, and if there is no prior deliberate reserve, the power storage capacity will generally not be full, which is often not enough for driving on congested roads. If the power supply is insufficient, the engine will specifically generate power for the power supply. At this time, the operating efficiency of the engine is very low, and it will even increase the overall fuel consumption and emissions.

Images