Honda Giken Kogyo Kabushiki Kaisha

Other

Ngk Insulators, Inc.

Honda Giken Kogyo K.k. (honda Motor Co., Ltd. in English)

Hironao Fukuchi

Yuichi Shimasaki

Teruo Wakashiro

Hideyuki Takahashi

Shinichi Kitajima

Kazutomo Sawamura

Atsushi Matsubara

Yukio Miyashita

Kunio Noguchi

Hiroaki Kato

Asao Ukai

Kenji Nakano

Katsuhiro Kumagai

Atsushi Izumiura

Hideyuki Oki

Akihisa Saito

Takayoshi Nakayama

Takashi Kiyomiya

Hideo Furumoto

Fumihiko Konno

Shigetaka Kuroda

Yasushi Kato

Yasuo Nakamoto

Hiroshi Mifune

Keisuke Uchida

Takashi Iwamoto

Kan Nakaune

Yoshihisa Hara

Hiroshi Ohno

Takanori Shiina

Shigeo Hidai

Nobuyuki Irie

A control system for an internal combustion engine is disclosed. The engine has an exhaust gas recirculation passage for recirculating a portion of exhaust gases from the engine to an intake system and an exhaust gas recirculation control valve for controlling an amount of exhaust gases recirculated through the exhaust gas recirculation passage. A valve opening amount of the exhaust gas recirculation control valve is detected. A fuel amount to be supplied to the engine is calculated according to the valve opening amount of the exhaust gas recirculation control valve. An average valve opening value, a change rate of which is smaller than that of the detected valve opening amount is used to calculate a correction value for correcting the fuel supply amount. The fuel supply amount is corrected according to the calculated correction value from a time at which an opening of the exhaust gas recirculation control valve is detected.

Control system for internal combustion engine

Assistance controlling apparatus for hybrid vehicle

An engine control system for hybrid vehicles, so as to smoothly switch the driving operation from the cylinder-deactivated engine operation, in which at least a part of the total number of cylinders of the engine is deactivated, to the all-cylinder-activated engine operation while considering the driver's intention. When the vehicle is decelerated, the cylinder-deactivated engine operation is performed and regeneration using the motor is performed. The system includes a cylinder deactivation release determining section for releasing the cylinder-deactivated engine operation when an engine speed decreases to a reference engine speed with respect to the cylinder-deactivated engine operation; and a brake operation detecting section for detecting whether a brake pedal is depressed. The cylinder deactivation release determining section includes a cylinder deactivation condition changing section for changing the reference engine speed according to whether the brake pedal is depressed, which is detected by the brake operation detecting section.

Engine control system and method for hybrid vehicle

A control device for a hybrid vehicle that responds reliably to the assist requests of a driver from start-up to departure of the vehicle. The control system for a hybrid vehicle equipped with an engine that outputs the start force for the vehicle, an electric motor that supplements the output of the engine, and a battery that supplies electrical power to the engine, provides an engine rotation speed sensor and an output assistance determination device that determines as to whether or not to carry output assistance using the motor depending on the state of the driving of the vehicle, and wherein the output assistance determination device provides an after-start-up output assistance permission means that permits output assistance of the engine by the electric motor in the case that the engine rotation speed detection means detects that the engine rotation speed is equal to or greater than a predetermined value during start-up of the engine, and in the case that the output assistance is permitted by the after-start-up output assistance permission device, output assistance of the engine by the electric motor is carried out.

Control device for hybrid vehicle

In order to prevent an occurrence of dieseling phenomenon, and to prevent engine rotation speed from decreasing during idle operation or the idle operation from being stopped, in step S , it is determined whether the flag value of an idle stop flag F_IDLSTP is &ldquo;1&rdquo; or not. If it is determined that the determination result is &ldquo;YES&rdquo;, that is, if it is determined that the internal combustion engine body is stopped, 0% is set to a target purge control valve drive duty value PGCMD (step S ), and 0 is set to the target purge flow rate QPGC (step S ). If it is determined that the determination result is &ldquo;NO&rdquo;, that is, when the internal combustion engine body is in operation, PGCMD calculation processing is executed (step S ). While the internal combustion engine body is stopped, execution of purge is stopped, thereby an occurrence of a dieseling phenomenon which is caused because the flow rate of the air flowing into the internal combustion engine body increases and the air is compressed, is prevented, thereby suppressing vibration from occurring in the internal combustion engine body.

Vaporized fuel treatment apparatus of internal combustion engine

Disclosed herein is a shift position indicating device for indicating a recommended shift position to a driver of a hybrid vehicle having an engine for driving a drive shaft of the vehicle, a motor for assisting a drive force applied to the drive shaft by electrical energy, and a battery for supplying power to the motor and storing electrical energy output from the motor. The motor having a regenerative function of converting kinetic energy of the drive shaft into electrical energy. According to the shift position indicating device, it is determined whether or not the vehicle is in a high-load running condition, and when the vehicle is in the high-load running condition, the shift-down is recommended.

Shift position indicating device for hybrid vehicle

The control apparatus for an internal combustion engine of the present invention comprises: a fuel supply device for supplying fuel to the internal combustion engine; a fuel tank for retaining fuel; a purge device for purging fuel vapor, produced in the fuel tank, into an intake system of the internal combustion engine; a purge correction amount updating device for calculating a purge correction amount for correcting an amount of fuel to be supplied by the fuel supply device, depending on the amount of fuel vapor purged by the purge device; a target air-fuel ratio setting device for setting a target air-fuel ratio depending on a running state of the internal combustion engine; and an update amount setting device for updating the purge correction amount depending on the target air-fuel ratio set by the target air-fuel ratio setting device.

Control apparatus for internal combustion engine

The engine control system, according to the present invention, for a hybrid vehicle, which has an internal combustion engine and an electric motor as driving force sources, and permits stopping and starting of the engine in accordance with predetermined drive conditions, the engine control system comprises: power-consumption detector for detecting an amount of power consumption by predetermined device; first power storage unit for supplying electric energy to the motor and storing energy generated when the electric motor is operated as a generator by the internal combustion engine and energy regenerated by regeneration; second power storage unit for supplying electric energy to the predetermined device; remaining-amount detector for detecting a remaining charge of said first power storage unit; stop/start determination device for determining whether to permit stopping or starting of the engine in accordance with the amount of power consumption by the predetermined device and the remaining charge of the first power storage unit; engine stopper for stopping the engine based on a result of a decision by the stop/start determination device; and engine starter for starting the engine based on the result of the decision by the stop/start determination device.

Engine control system for hybrid vehicle

A control system for a hybrid vehicle with an engine for producing a driving force for the vehicle, a motor for producing an assist driving force to assist the output from the engine, and a power storage unit for supplying electric energy to the motor and storing regenerated energy produced by regeneration of the motor when the vehicle decelerates. The control system includes a charge zone determining device for determining whether a state of charge (SOC) is within the normal use range, temporary use range, over-discharge range, or over-charge range; a generation mode selector for selecting one of a normal generation mode corresponding to normal use zone, a low generation mode corresponding to temporary use zone, a high generation mode corresponding to over-discharge zone, and a generation stop mode corresponding to over-charge zone, based on the determination by the charge zone determining device; and a generation amount setter for setting the amount of electric power generation corresponding to each mode.

Control system for hybrid vehicle

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.

A hybrid vehicle has a transmission coupled to the output shaft of an engine for transmitting an output power of the engine to drive wheels of the hybrid vehicle. A generator motor is coupled to the transmission for transmitting an assistive output power for assisting the output power of the engine through the transmission to the drive wheels. A battery stores electric energy regenerated by the generator motor, operating as an electric motor, from kinetic energy of the hybrid vehicle transmitted from the drive wheels through the transmission when the hybrid vehicle is decelerated. A transmission control unit establishes a speed reduction ratio for the transmission to achieve a predetermined regeneration efficiency for the generator motor when the hybrid vehicle is decelerated, and controls the transmission at the established speed reduction ratio.

Hybrid vehicle

In a heating device for an exhaust gas purification catalytic converter, an insulating coating or an insulating material is provided between a tubular electrode receiving member of a power relay means and an electrode received in this electrode receiving member.

Heating device for an exhaust gas purification catalytic converter

A foreign matter-removing filter is provided upstream of an electrically-heated heater.

Exhaust gas purification device for an internal combustion engine

A hybrid vehicle has an engine for propelling the hybrid vehicle, a power transfer mechanism for transferring an output power of the engine from an output shaft thereof to drive wheels of the hybrid vehicle, an electric motor for supplying an assistive output power to assist the output power of the engine through the power transfer mechanism to the drive wheels, and an electric energy storage unit for storing electric energy for energizing the electric motor. The hybrid vehicle also has a controller for controlling operation of the hybrid vehicle with the engine and the electric motor. If the amount of electric energy stored in the electric energy storage unit is greater than a predetermined quantity, the controller controls the electric motor to generate the assistive output power to start the hybrid vehicle with the electric energy supplied from the electric energy storage unit to the electric motor while the engine is idling or stopped. If the amount of electric energy stored in the electric energy storage unit is smaller than the predetermined quantity, the controller controls the engine to generate an output power to start the hybrid vehicle while the electric motor is being de-energized.

A hybrid vehicle has a generator motor coupled to the output shaft of an engine through a transfer shaft, for transmitting an assistive output power for assisting an output power of the engine through the transfer shaft to the output shaft of the engine. A battery stores electric energy regenerated by the generator motor from kinetic energy of the hybrid vehicle transmitted from the output shaft of the engine through the transfer shaft. A generator is mounted on the transfer shaft and has an electric energy generating ability smaller than the generator motor. The generator generates electric energy to energize another device than the battery.

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Wako, Japan

Hironao Fukuchi