Operation mode control device, method for controlling operation mode, movable body, output control device, charge discharge control device, and electronic device

Patent metadata

Field	Value
Publication number	US-10227066-B2
Application number	US-201514969250-A
Country	US
Kind code	B2
Filing date	Dec 15, 2015
Priority date	Dec 26, 2014
Publication date	Mar 12, 2019
Grant date	Mar 12, 2019

Abstract

An operation mode control device for controlling an operation mode of a movable body including a battery having a residual capacity-output property including a local minimum value and a local maximum value on a side of a lower residual capacity than the local minimum value, a motor operable by electric power supplied by the battery, and an engine, wherein the operation mode control device is configured to control to switch between a first mode, in which only power of the motor operates, and a second mode, in which both the power of the motor and power of the engine operate, wherein the operation mode is controlled to have an operation range, in which the second mode is performed when an output is on the side of lower residual capacity than the local minimum value.

First claim

What is claimed is:

1. An operation mode control device for controlling an operation mode of a movable body, the operation mode control device comprising:
a processor;
a plurality of switches that controls the charging and discharging of a battery of the movable body; and
a memory configured to store program instructions that cause the processor to
monitor a residual capacity of the battery, and
control the plurality of switches based on the residual capacity of the battery,

wherein
the battery
includes an electrode formed from a material that includes lithium vanadium phosphate, having a basic skeleton of Li 3 V 2 (PO 4 ) 3 or an analogous compound, in which a structure of the lithium vanadium phosphate is denaturalized, the material of the electrode being prepared by mixing lithium vanadium phosphate with a ternary material, and
has a residual capacity-output property including a first local minimum output value at a first residual capacity value of around 40%, a first local maximum output value on a side of lower residual capacity than the first local minimum output value, a second local maximum output value on the side of higher residual capacity than the first local minimum output value and a second local minimum output value on the side of lower residual capacity than the first local maximum output value, and

the moveable body further includes:
a motor operable by electric power supplied by the battery, and
an engine,

the operation mode control device being configured to control the plurality of switches to switch between a first mode, in which only the battery is discharged to operate the motor, and a second mode, in which power of the engine is used to supplement the power of the motor or charge the battery,
wherein the operation mode is controlled to
operate in the first mode above a first threshold residual capacity that is within a range of the residual capacity from a second residual capacity at the second local maximum output value to the first residual capacity at the first local minimum output value;
switch to the second mode after the residual capacity falls below the first threshold residual capacity and operate in the second mode within the range of the residual capacity from the first threshold residual capacity to a second threshold residual capacity, the second threshold residual capacity being within the range of the residual capacity from the first residual capacity at the first local minimum output value to a third residual capacity at the first local maximum output value, and
switch back to the first mode after the residual capacity of the battery falls below the second threshold residual capacity and operate in the first mode within the range of the residual capacity from the second threshold residual capacity to a third threshold residual capacity, the third threshold residual capacity being equal to or lower than a residual capacity corresponding to an output value that is both equal to the output value of the second threshold residual capacity and on the side of lower residual capacity than the third residual capacity at the first local maximum output value, wherein
discharge of the battery is prohibited after the residual capacity of the battery falls below the third threshold residual capacity, whereupon the battery is charged using the power of the engine.

2. A movable body comprising:
the operation mode control device according to claim 1 ;
the battery;
the motor; and
the engine.

3. The movable body according to claim 2 ,
wherein the first local minimum output value is equal to or more than a minimum output necessary to propel the movable body in the first mode.

4. The operation mode control device according to claim 1 , wherein the ternary material includes at least one of nickel, cobalt, and aluminum.

Assignees

• Yoshida Masaaki
• Yanagita Hideo
• Ricoh Co Ltd

Inventors

• Yoshida Masaaki
• Yanagita Hideo

Classifications

• B60W10/06

  including control of combustion engines · CPC title

• B60W2510/244

  Charge state · CPC title

• B60K6/48

  Parallel type · CPC title

• B60W10/08

  including control of electric propulsion units, e.g. motors or generators · CPC title

• Y02T10/6286

  Cross-Sectional Technologies · mapped topic