A throttle control system includes a throttle device and a controller that controls the throttle device. The controller executes a driving process of driving the electric motor such that a target angular position of the specific gear continues to increase beyond or decrease below the initial position. The controller executes a determination process of determining that wear has occurred in the gear mechanism based on that a non-rotation time in which the angular position detected by the rotation sensor does not change during execution of the drive process being greater than or equal to a predetermined specified time.

Methods are provided for engines. In one example method, at higher engine load, cool compressed air is drawn into an engine via an air intake passage, and at lower engine load, ambient air is drawn into the engine via a duct while retaining cooled compressed air in the air intake passage. The compressed air may be released from the air intake passage based on heat transferred to the compressed air during the lower engine load, in at least one example.

Methods and systems are provided for boosted engines. In one example, a method for a boosted engine method may include storing compressed air in a reservoir for supply to the engine during increased engine load operating conditions and replenishing the air in response to pressure dropping below a nominal threshold; and increasing the pressure beyond the nominal threshold in response to increased temperature of the stored air in the reservoir even when operating conditions include decreased engine load, and purging the increased temperature stored air to bring pressure back down toward the nominal threshold. In one example, increasing pressure to the reservoir may include supplying compressed air from an air suspension system. In one example, increasing pressure to the reservoir may include supplying compressed air from an air compressor separate from an engine turbocharger compressor. In one example, the method may include, in response to a vehicle operator tip-in during the increasing of the pressure beyond the nominal threshold, simultaneously supplying stored compressed air to the engine while replenishing the air.

A throttle grip device includes: a throttle grip; an interlocking member including an engaged portion engaged with an engaging portion formed on the throttle grip, and rotating in conjunction with the normal rotation and the reversed rotation of the throttle grip; a first urging unit configured to urge the interlocking member toward the initial position when the throttle grip is subjected to the normal rotation; a second urging unit configured to urge the interlocking member toward the initial position when the throttle grip is subjected to the reversed rotation; a rotation angle detecting unit detecting a rotation angle of the throttle grip by detecting a rotation angle of the interlocking member; and a pressing unit pressing the engaging portion against the engaged portion by an urging force of the second urging unit when the throttle grip is in the initial position.

The inhibition device includes a micro-controller configured with a triggering condition including a number of intervals and, for each interval, a corresponding duration and a corresponding threshold. Each interval is a range specifying how much the vehicle's acceleration pedal has changed its position in terms of percentages of a pedal stroke. Each duration specifies the fastest time duration allowable for the acceleration pedal to attain a corresponding interval of pedal position change. The micro-controller converts progress signals of the acceleration pedal to corresponding percentages, obtains a difference DEF between the successive percentages, records a time duration RES between successive progress signals, and calculates DEF/RES=X. When X is greater than or equal to a threshold of a corresponding interval, the micro-controller sends an idle signal to the vehicle's engine control unit or intercepts the progress signals to prevent them from reaching the engine control unit.

Provided is an electronically controlled throttle device for an engine driving to open and close a throttle valve (8) of a valve body (3) to which rotation of a motor (15) is transmitted from a driven gear (14) via a throttle shaft (6), and disposing a substrate (22) on which an excitation conductor (23) and a signal detection conductor (24) are arranged to face an exciting conductor (21) rotating together with the throttle shaft (6). The driven gear (14) comprises an embedded core metal (25), and has one side surface to which an exciting conductor (21) is exposed, the core metal (25) and the exciting conductor (21) being insert-Molded of a synthetic resin material and prepared, and a caulked portion (6a) of the throttle shaft (6) is inserted and fixed into a shaft hole (25a) extending through the core metal (25).

A control device may be configured to control an aperture of a throttle valve. The control device may include a pressure detector configured to detect a pressure in an intake pipe of a throttle; a flow rate detector configured to detect an amount of air flowing in the intake pipe; a current value detector configured to detect a current value of a throttle motor operating the throttle valve; a torque estimator configured to estimate torque of an engine based on the detected current value; a first aperture estimator configured to estimate the aperture of the throttle valve based on the detected pressure; a second aperture estimator configured to estimate the aperture of the throttle valve based on the detected amount of air; and a third aperture estimator configured to estimate the aperture of the throttle valve based on the estimated torque and a revolution speed of the engine.

Methods and systems are provided for boosted engines. In one example, a method for a boosted engine method may include storing compressed air in a reservoir for supply to the engine during increased engine load operating conditions and replenishing the air in response to pressure dropping below a nominal threshold; and increasing the pressure beyond the nominal threshold in response to increased temperature of the stored air in the reservoir even when operating conditions include decreased engine load, and purging the increased temperature stored air to bring pressure back down toward the nominal threshold. In one example, increasing pressure to the reservoir may include supplying compressed air from an air suspension system. In one example, increasing pressure to the reservoir may include supplying compressed air from an air compressor separate from an engine turbocharger compressor. In one example, the method may include, in response to a vehicle operator tip-in during the increasing of the pressure beyond the nominal threshold, simultaneously supplying stored compressed air to the engine while replenishing the air.

A general engine throttle apparatus includes a throttle body 12, a throttle valve 13, a throttle shaft 14, a driven gear 24, an electrically driven motor 15, and a detected body block 26. The throttle valve 13 opens and closes an intake air introduction hole 11. The throttle shaft 14 holds the throttle valve 13 and is rotatably supported by a holding hole 16 of the throttle body 12. The electrically driven motor 15 transmits a rotation operation force to the driven gear 24. The detected body block 26 is attached to another end part in an axial direction of the throttle shaft 14, and a state of the throttle shaft 14 is detected by a sensor. The driven gear 24 is integrally formed on one end side in the axial direction of the throttle shaft 14. The detected body block 26 is formed to have a maximum outer diameter that is smaller than a minimum inner diameter of the holding hole 16.

A brake controller operates PTC when an obstacle sensor detects an obstacle ahead, a vehicle speed sensor detects a vehicle speed equal to or lower than a predetermined vehicle speed, and an operation of an accelerator pedal equal to or greater than a predetermined depression amount is detected. When detection of the obstacle ahead is lost while the PTC is operating and the PTC is to be cancelled, the brake controller operates a power limiting control if a depression operation of the accelerator pedal is detected. The power limiting control limits an engine power to cause acceleration to be lower than a requested acceleration corresponding to a depression amount of the accelerator pedal.