초록 ▼

The control system of the present invention is provided for a hybrid vehicle with an engine, a motor, and a power storage unit. The control system selects one of an air intake passage pressure assist mode (PB assist mode) corresponding to a partial load range of the engine and a throttle assist mode

The control system of the present invention is provided for a hybrid vehicle with an engine, a motor, and a power storage unit. The control system selects one of an air intake passage pressure assist mode (PB assist mode) corresponding to a partial load range of the engine and a throttle assist mode corresponding to the opening state of a throttle. The control system comprises: an assist mode determining device for determining whether the vehicle is in the PB assist mode or in the throttle assist mode, based on the opening state of a throttle; a PB assist amount determining device for determining a base assist amount in the PB assist mode, based on the rotational speed of the engine and an air intake passage pressure (PB); a throttle assist amount determining device for determining the base assist amount in the throttle assist mode, based on the rotational speed of the engine, the base assist amount including a range defined by an upper threshold value and a lower threshold value; and a throttle assist amount changer for gradually changing the assist amount determined by the throttle assist amount determining device between the upper threshold value and the lower threshold value when the vehicle runs through a partial load range to a full load range of the engine.

대표청구항 ▼

[ What is claimed is:] [1.]1. A control system for a hybrid vehicle with an engine for producing a driving force for said vehicle, a motor for producing an assist driving force to assist the output from said engine, and a power storage unit for supplying electric energy to said motor and storing reg

[ What is claimed is:] [1.]1. A control system for a hybrid vehicle with an engine for producing a driving force for said vehicle, a motor for producing an assist driving force to assist the output from said engine, and a power storage unit for supplying electric energy to said motor and storing regenerated energy produced by regeneration of said motor when said vehicle decelerates, whereinone of an air intake passage pressure assist mode corresponding to a partial load range of said engine and a throttle assist mode corresponding to the opening state of a throttle is selectable, andsaid control system comprises:an assist mode determining device for determining whether said vehicle is in the air intake passage pressure assist mode or in the throttle assist mode;an air intake passage pressure assist amount determining device for determining a base assist amount in the air intake passage pressure assist mode, based on the rotational speed of said engine and an air intake passage pressure;a throttle assist amount determining device for determining the base assist amount in the throttle assist mode, based on the rotational speed of said engine, the base assist amount including a range defined by upper and lower threshold values; anda throttle assist amount changer for gradually changing the assist amount determined by said throttle assist amount determining device between the upper threshold value and the lower threshold value when said vehicle runs through a partial load range to a full load range of said engine.