Toyota Jidosha Kabushiki Kaisha

Fujitsu Ten Limited

Tokai Optical Co., Ltd.

Koji Yamamoto

Toshiya Hashimoto

Koji Hokoi

Koji Yoshihara

Hideaki Yaguchi

Takanori Aoki

Takao Itoh

Takayoshi Okuda

Kiyoshiro Ueoka

Eiji Fukushiro

Kensuke Kamichi

Hirotoshi Takahashi

Yasuhiro Kaya

Tsuyoshi Fukagawa

Kotaro Inaoka

When an accelerator operating speed is greater than a quick depression threshold value, a start threshold value is set to a value that is smaller than a selection threshold value between a single-drive mode and a double-drive mode in an EV drive mode. Then, when a required torque becomes greater than the start threshold value, an engine is started.

Hybrid vehicle

When there is a history that a required torque has reached a high torque range and the required torque falls within a low torque range, a start threshold is changed from a value larger than a maximum double-drive torque to a value smaller than a selection threshold for selecting a single-drive mode or a double-drive mode. When the required torque becomes larger than the start threshold, an engine is started.

When an output limitation value of a battery is equal to or less than a threshold, an electronic control unit determines that basic torque is able to be output from a second motor to a drive shaft. Then, the electronic control unit sets a predetermined value as a target motoring rotation speed for ending motoring of an engine by a first motor. When the output limitation value is greater than the threshold, the electronic control unit determines that the basic torque is unable to be output from the second motor to the drive shaft at the time of starting the engine, and sets a value smaller than the predetermined value as the target motoring rotation speed.

Hybrid vehicle and control method for hybrid vehicle

In a control apparatus for a vehicle, an ECU includes an operation reception unit that receives depression of a power switch (i.e., a vehicle system activation operation is performed) in a 'ready-off state' as a non-drivable state, and a control execution unit that executes, when the vehicle system activation operation is received by the operation reception unit during running of a hybrid vehicle HV and an engine is started, a startability improvement control for improving startability of the engine as compared with the startability thereof when the vehicle system activation operation is received by the operation reception unit during stop of the hybrid vehicle HV and the engine is started.

Control apparatus for vehicle

If the accelerator is on upon restarting a driving force source in travel mode by the time when the vehicle comes to a standstill after the driving force source is manually operated to stop while the vehicle is traveling, a control device for the vehicle implements first control in which the driving force output to the drive wheels is gradually increased. If the accelerator is on upon switching to the travel mode following restarting of the driving force source in the neutral mode and by the time the vehicle comes to a standstill after the driving force source is manually operated to stop while the vehicle is traveling, the control device implements second control in which the driving force output to the drive wheels is increased. The first control increases the driving force not as much as the second control increases the driving force.

Control device for vehicle

An optical product includes an optical multilayer film on an optical product base. A color of reflected light of the optical multilayer film satisfies both of the following conditions in a chromaticity diagram (x,y,Y) of a CIE color system: [1] 0.27&#x2266;x&#x2266;0.30 and [2] 0.30&#x2266;y&#x2266;0.36. The optical product base is a spectacle plastic lens base.

Optical product and spectacle plastic lens

A vehicle has a restriction storing device that stores a plurality of restrictions that are respectively created for a plurality of virtual gear ranges, such that, in each of the virtual gear ranges, required driving force as driving force to be applied to a drive shaft corresponding to the same accelerator operation amount tends to be increased as the vehicle speed is higher, and the required driving force corresponding to the same accelerator operation amount tends to be increased as the virtual gear range is shifted to a lower range when the vehicle speed is constant.

Vehicle and method of controlling the same

A vehicle control device () comprises a driving device () including an engine () and a rotary electric machine (), a power circuit () connected to the rotary electric machine (), a control part (), and an ecoswitch (). The CPU () of the control part () comprises a low fuel consumption travel instruction judgment module () for judging on or off of the ecoswitch (), an operation condition switch module () for switching the operation condition of the rotary electric machine on the basis of the on or off of the ecoswitch (), an engine state judgment module () for judging whether or not the engine () is in a started state or a stopped state, and a damping control module () for carrying out damping control when the engine () is stalled or stopped.

Vehicle control device and control method of vehicle control device

In a hybrid vehicle equipped with an engine, a planetary gear mechanism linked to the output shaft of the engine and to a driveshaft, a first motor linked the planetary gear, a second motor inputting and outputting power to and from the driveshaft, and a battery inputting and outputting electric power to and from the motors, when the battery temperature Tb is lower than the preset reference temperature Tbref, drive control prohibits the intermittent operation of the engine and controls the engine and the motors to output the torque demand to the driveshaft with warm-up control of the battery. When the battery temperature Tb is higher than or equal to the preset reference temperature Tbref and the cooling water temperature Tw is higher than or equal to the preset reference temperature Twref, drive control performs the intermittent operation of the engine and controls the engine and the motors to output the torque demand to the driveshaft. When the battery temperature Tb is higher than or equal to the preset reference temperature Tbref and the cooling water temperature Tw is lower than the preset reference temperature Twref, drive control prohibits the operation of the engine and controls the engine and the motors to keep the warm-up control of the battery and to output the torque demand to the driveshaft.

Vehicle and control method thereof

When the low SOC control request is output and the catalyst warming request is not output, the low SOC control mode is set as a control mode and the state of charge (SOC) of the battery is controlled according to the managing center SOC* set as the smaller value Sthan the value Sfor the normal time. When the catalyst warming request is output, the catalyst warming mode is set as a control mode regardless of the low SOC control request and the engine is controlled to perform the self sustained operation (no-load operation) at the idling rotation speed Nidl with the spark-retard state. Namely, when the battery temperature is low and the catalyst temperature is also low, the catalyst warm-up is given a higher priority than the low SOC control and prevents the exhaust emission from becoming worse.

Vehicle and control method of vehicle

A hybrid vehicle equipped with an engine, a planetary gear mechanism linked to the output shaft of the engine and to a driveshaft, a first motor linked to the planetary gear, a second motor inputting and outputting power to and from the driveshaft, and a battery inputting and outputting electric power to and from the motors. When a cooling water temperature Tw of the engine is lower than a threshold Twref, the intermittent operation of the engine is prohibited, and a controller performs a warm-up control on a condition that a battery temperature Tb is a preset reference temperature T&#x3b1;, while performing a low state of charge control on condition that a battery temperature Tb is higher than or equal to a preset reference temperature T&#x3b1; and lower than a preset reference temperature T&#x3b2;.

A control unit of a vehicle control apparatus includes a module for receiving an ON signal from an eco switch, a module for reducing a step-up upper limit value of a converter from a predetermined normal upper limit value to a restricted upper limit value at a predetermined voltage reduction rate, and a module for determining an accelerator opening based on an accelerator operation performed by a user. When it is determined that the accelerator opening is equal to or greater than a predetermined threshold while the eco switch is ON, the step-up upper limit value of the converter is restored to the normal upper limit value from the restricted upper limit value at a predetermined voltage increase rate.

Vehicle control apparatus

In response to an upshift of a gearshift position SP in a sequential gearshift range, the drive control of the invention once lowers the rotation speed Ne of an engine. This variation in rotation speed of the engine enables the driver to have adequate gear change feeling, which is similar to the familiar gear change feeling in a conventional motor vehicle equipped with a stepped automatic transmission. Namely the drive control of the invention effectively prevents the driver from feeling something is wrong.

Growing community of inventors

Okazaki, Japan

Koji Yamamoto