Toyota Jidosha Kabushiki Kaisha

Akio Uotani

Yoshiaki Kikuchi

Junichi Matsumoto

Shinji Ichikawa

Shigeki Kinomura

Yusuke Kinoshita

Hiroaki Takeuchi

Keita Hashimoto

Kazuyuki Kagawa

Ryuta Ishida

Hiroaki Arakawa

Tamaki Ozawa

Hajime Kushima

Toshiyuki Nagase

Masaaki Kiyohara

Yuki Shimizu

A vehicle includes: a battery pack including a secondary battery, a battery sensor configured to detect a state of the secondary battery, and a first control device; and a second control device provided separately from the battery pack, wherein: the first control device is configured to set a power upper limit value indicating an upper limit value of a battery power of the secondary battery by using a detection value of the battery sensor; and the second control device is configured to set a guard value of the upper limit value of the battery power by using a temperature of the secondary battery and set the power upper limit value such that the power upper limit value does not exceed the guard value.

Vehicle, vehicle control system, and vehicle control method

A vehicle includes: a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device; a second control device provided separately from the battery pack; and a converter. The first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value indicating an upper limit value of an input current of the secondary battery. The second control device is configured to use a power upper limit value indicating an upper limit value of an input power of the secondary battery to control the input power of the secondary battery. The converter is configured to perform a conversion of the current upper limit value into the power upper limit value.

A vehicle includes a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device, a second control device provided separately from the battery pack, and a converter. The first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value indicating an upper limit value of an input current of the secondary battery. The second control device is configured to use a power upper limit value indicating an upper limit value of an input power of the secondary battery to control the input power of the secondary battery.

Vehicle, vehicle control system, and vehicle control method that can perform power-based input restriction on a secondary battery included in a current restricting battery pack

A vehicle includes: a battery pack including a secondary battery, a battery sensor that detects a state of the secondary battery, and a first control device; a second control device provided separately from the battery pack; and a converter. The first control device is configured to use a detection value of the battery sensor to obtain a current upper limit value indicating an upper limit value of an output current of the secondary battery. The second control device is configured to use a power upper limit value indicating an upper limit value of an output power of the secondary battery to control the output power of the secondary battery. The converter is configured to perform conversion of the current upper limit value into the power upper limit value.

An electrically driven vehicle includes a battery pack including a battery ECU, a gate ECU provided separately from the battery pack, and an HVECU provided separately from the battery pack and the gate ECU and configured to control any one of battery power and battery current of the battery as a control target. The gate ECU is installed at a position outside the battery pack and relays communication between the battery ECU and the HVECU.

Vehicle

A hybrid vehicle includes: an engine; a battery; a power converter; a relay; a first controller; and a second controller. The second controller is configured to control the engine and the power converter according to allowable charging power and allowable discharging power received from the first controller. The second controller has, as control modes, a normal mode in which the relay is closed and the battery and the power converter are electrically connected and a batteryless drive mode in which the relay is opened to cause the hybrid vehicle to move with the battery electrically disconnected from the power converter. The second controller is configured to select the batteryless drive mode when at least one of the magnitude of the allowable charging power and the magnitude of the allowable discharging power become smaller than a first predetermined value.

Hybrid vehicle, drive control system, and method for controlling hybrid vehicle

A power control system, configured to exchange electric power with a battery pack, comprising: a power conversion device; and a controller, wherein the battery pack is configured to output a variation of a state-of-charge value among cells to the controller, the variation being determined based on at least one of a detection result from a voltage sensor or a detection result from a current sensor, and the controller is configured to control the power conversion device such that a maximum state-of-charge value among a plurality of the state-of-charge values of the cells is lower than an upper limit of a predetermined state-of-charge range and a minimum state-of-charge value among the state-of-charge values of the cells is higher than a lower limit of the predetermined state-of-charge range, the maximum state-of-charge value and the minimum state-of-charge value being values based on the variation.

Power control system, electric powered vehicle, and power control method

An ECU performs a process including: when a vehicle establishes a Ready-On state, selecting a CD mode; when discharging power is uncompleted and a scheduled time to return the vehicle is a time within a discharging period, setting a second target SOC as a mode switching value; and when the vehicle's power storage device has an SOC reaching the mode switching value and a surcharge imposed on a rental fee is unaccepted, switching the current control mode from the CD mode to a CS mode.

Hybrid vehicle and method for controlling hybrid vehicle

A vehicle includes a battery pack including a secondary battery and a first control device, a second control device provided separately from the battery pack, and a converter. The converter is configured to select a conversion formula from options depending on a situation and use the selected conversion formula to convert at least one of a first current upper limit value and a second current upper limit value into at least one of a first power upper limit value and a second power upper limit value.

Vehicle, vehicle control system, vehicle control method

The number of opportunities where external charging of a vehicle parked in a residential parking space or a charging station in a predetermined period is available is counted as the number of opportunities, and the number of times of the external charging performed in the opportunities in the same predetermined period is counted as the number of times of charging. The number of times of charging is then divided by the number of opportunities to calculate and store a charging frequency. Since the charging frequency is a ratio of the number of times that the external charging was performed to the number of opportunities where the external charging is available in the predetermined period, the ratio is used as an index that can offer more accurate determination regarding an external charging utilization status. As a result, various processing to promote external charging are executed more properly.

Hybrid vehicle

A utilization index IDX is calculated based on one or more parameters (the number of times of charging/the number of trips, total battery charger connection time/total vehicle stop time, total EV traveling distance/total HV traveling distance, total EV traveling time/total HV traveling time, total EV traveling distance/total traveling distance, total EV traveling time/total traveling time, total charge amount/total fuel supply quantity) obtained based on a ratio of an EV traveling utilization level to an HV traveling utilization level or a total traveling utilization level, and the utilization index IDX is stored. Since the utilization index IDX is calculated such that as each parameter is larger, utilization of charging of a battery by a battery charger is performed more sufficiently. Accordingly, the utilization index IDX can be used as an index that offers more accurate determination regarding a utilization status of the battery charging.

A hybrid vehicle includes an engine, a fuel tank, a motor, a battery, a charger, and a notification mechanism. The battery is configured to supply electric power to the motor. The charger is configured to carry out external charging that charges the battery by use of electric power from an external power source. The notification mechanism is configured to notify, to an outside of the vehicle, information on a use index indicative of a degree of use of external charging in a predetermined time period.

Growing community of inventors

Toyota, Japan

Akio Uotani