Abstract:
A speed control method for an automatic transmission includes a first synchronizing process, in which a first clutch portion is operated to be in an engaging state in order to synchronize a first input shaft to a power source, a second synchronizing process, in which the first input shaft is synchronized to the output shaft by operating a gear train connected the first input shaft so as to be in an engaging state, after the first clutch portion is operated so as to be in the disengaging state and a torque transmission path switchover process for switching a torque transmitting path from a second input shaft to the first input shaft by operating the first clutch portion so as to be in an engaging state while the second clutch portion is operated so as to be in an disengaging state.
Abstract:
A power transmission control device is used for a hybrid vehicle including an internal combustion engine and a motor (MG) as power sources, and includes a manual transmission and a friction clutch. A torque of the motor (MG torque) is generally adjusted to the smaller one (=MG torque final reference value) of an MG torque reference value determined based on an accelerator opening and an MG torque limit value determined based on a clutch return stroke. Based on satisfaction of a predetermined condition relating to a clutch pedal operation performed by a driver, the MG torque is intentionally adjusted to a value shifted from the MG torque final reference value in place of the MG torque final reference value. As a result, a driving force which is more appropriate or better meets a driver's intention can be obtained.
Abstract:
A drive state control apparatus is applied to a vehicle which has not only a transfer including a multi-disc clutch mechanism but also a changeover mechanism interposed in an axle and which can be switched between 2WD and 4WD. When a 2WD-to-4WD changeover condition is satisfied, the multi-disc clutch is immediately switched from a “decoupled state” to a “coupled state.” Meanwhile, a connecting operation of the changeover mechanism is started upon establishment of a state in which left and right rear wheels have no acceleration slippage, and a state in which rotational speeds of first and second axles on opposite sides of the changeover mechanism are approximately equal to each other. In addition, in the case where the left and right rear wheels have acceleration slippage after the 2WD-to-4WD changeover condition has been satisfied, an E/G output reduction control is executed. Thus, the connecting operation can be performed smoothly.
Abstract:
A drive state control apparatus is applied to a vehicle which has not only a transfer including a multi-disc clutch mechanism but also a changeover mechanism interposed in an axle and which can be switched between 2WD and 4WD. When a 2WD-to-4WD changeover condition is satisfied, the multi-disc clutch is immediately switched from a “decoupled state” to a “coupled state.” Meanwhile, a connecting operation of the changeover mechanism is started upon establishment of a state in which left and right rear wheels have no acceleration slippage, and a state in which rotational speeds of first and second axles on opposite sides of the changeover mechanism are approximately equal to each other. In addition, in the case where the left and right rear wheels have acceleration slippage after the 2WD-to-4WD changeover condition has been satisfied, an E/G output reduction control is executed. Thus, the connecting operation can be performed smoothly.
Abstract:
A power transmission control device is used for a hybrid vehicle including an internal combustion engine and a motor (MG) as power sources, and includes a manual transmission and a friction clutch. A torque of the motor (MG torque) is generally adjusted to the smaller one (=MG torque final reference value) of an MG torque reference value determined based on an accelerator opening and an MG torque limit value determined based on a clutch return stroke. Based on satisfaction of a predetermined condition relating to a clutch pedal operation performed by a driver, the MG torque is intentionally adjusted to a value shifted from the MG torque final reference value in place of the MG torque final reference value. As a result, a driving force which is more appropriate or better meets a driver's intention can be obtained.
Abstract:
An on-demand-type drive state control apparatus for a vehicle is provided. In the case where acceleration slippage occurs at drive wheels (rear wheels) of a vehicle when a drive system is in a two-wheel drive state, the drive system is switched from the two-wheel drive state to a four-wheel drive state. That is, the maximum transmittable torque of a multi-disc clutch mechanism increases from “0” to a predetermined value. In the four-wheel drive state, the maximum transmittable torque decreases stepwise from the present value by a predetermined value every time the vehicle travels over a predetermined distance in a state in which none of the wheels cause acceleration slippages. That is, the clutch drive current supplied to the multi-disc clutch mechanism decreases gradually (stepwise or in a plurality of steps), and the drive torque distributed to the front wheels (rear wheels) decreases (increases) gradually.
Abstract:
An electronic parts packaging structure of the present invention includes a wiring substrate having a wiring pattern, a first insulating film which is formed on the wiring substrate and which has an opening portion in a packaging area where an electronic parts is mounted, the electronic parts having a connection terminal flip-chip mounted on the wiring pattern exposed in the opening portion of the first insulating film, a second insulating film for covering the electronic parts, a via hole formed in a predetermined portion of the first and second insulating films on the wiring pattern, and an upper wiring pattern formed on the second insulating film and connected to the wiring pattern through the via hole.
Abstract:
The invention provides a motor including a terminal block that is insert molded into a core, so as to increase the strength to support the terminal block. A stator has paired inner cores configured by two inner cores facing back to back and each having a disk part and pole teeth. Each of the disk parts is provided with a terminal block holding part. The terminal block is connected with the terminal block holding parts via a resin connection part that is insert molded. The terminal block holding parts are provided with recesses configured by cutouts in portions to face the terminal block, respectively. The resin connection part has a thickness increased by filling the recesses so as to increase the strength at a connection portion thereof. The cutouts in the terminal block holding parts facing back to back are offset with respect to a radial line, terminal block facing ends are generally spaced apart from the terminal block by a constant distance. Therefore, the terminal block is prevented from being unstable.
Abstract:
A transmission includes a rotary shaft, a clutch hub fixed to the rotary shaft a transmission gear rotatably provided at the rotary shaft, a gear piece connected to the transmission gear at the side of the clutch hub, a synchronizer ring positioned between the clutch hub and the gear piece, a sleeve held by the clutch hub slidably in an axial direction, a fork engaged with the sleeve and a fork shaft connected with the fork for shifting the fork in the axial direction. The transmission performs synchronization operation of rotation of the clutch hub and the transmission gear. The fork shaft has an in-shaft lubricant passage provided therein, a lubricant supply passage and a lubricant outlet passage.
Abstract:
An electronic parts packaging structure of the present invention includes a wiring substrate having a wiring pattern, a first insulating film which is formed on the wiring substrate and which has an opening portion in a packaging area where an electronic parts is mounted, the electronic parts having a connection terminal flip-chip mounted on the wiring pattern exposed in the opening portion of the first insulating film, a second insulating film for covering the electronic parts, a via hole formed in a predetermined portion of the first and second insulating films on the wiring pattern, and an upper wiring pattern formed on the second insulating film and connected to the wiring pattern through the via hole.