# US 11,906,595 B2 · Battery pack and movable machine including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,595 B2 - Document ID: US11906595B2 - Status: Granted - Kind: B2 - Application number: 16/718,461 - Filed: 2019-12-18 - Published: 2020-07-02 - Granted: 2024-02-20 - Earliest claimed: 2018-12-26 - Assignees: Kawasaki Motors, Ltd. - Applicants: Kawasaki Motors, Ltd. - Inventors: Yoshimoto Matsuda - Web page: https://patentgrep.com/patent/US11906595B2 ## CPC - G01R 31/392: Determining battery ageing or deterioration, e.g. state of health - G07C 3/00: Registering or indicating the condition or the working of machines or other apparatus, other than vehicles - B60L 50/51: characterised by AC-motors - B60L 50/66: {Arrangements of batteries} - H01M 10/4285: {Testing apparatus} - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - B60L 2210/40: DC to AC converters - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Provided is a battery pack adapted to be removably mounted on a movable machine, the battery pack including: a rechargeable battery unit; a detector secured to the battery unit to detect the motion of the battery unit; a memory device; a processing device configured to record a history of motion information detected by the detector in the memory device; and an interface configured to output the motion information recorded in the memory device to the outside of the battery pack. ## Claims ### Claim 1 A battery pack configured to be removably mounted on a vehicle body of a movable machine, the vehicle body including a vehicle controller, the battery pack comprising: a rechargeable battery unit; a detector secured to the battery unit to detect a motion of the battery unit; a battery monitoring unit including a memory device and a processing device configured to record a history of motion information detected by the detector in the memory device; and a communication connector configured to communicatively connect the battery monitoring unit to the vehicle controller and output the motion information recorded in the memory device to the vehicle controller. ### Claim 2 (depends on 1) The battery pack according to claim 1, further comprising a temperature sensor configured to detect a temperature of the battery unit, wherein the processing device diagnoses a state of the battery unit based on a history of temperature information detected by the temperature sensor. ### Claim 3 (depends on 1) A movable machine comprising: the battery pack according to claim 1; and an electric motor for propulsion of the movable machine, the electric motor being configured to use the battery unit of the battery pack as a power source or an auxiliary power source. ### Claim 4 (depends on 3) The movable machine according to claim 3, being a vehicle capable of traveling in an inclined state, the movable machine further comprising a computing device configured to estimate a posture of the movable machine during travel based on motion information detected by the detector after mounting of the battery pack on the movable machine. ### Claim 5 (depends on 4) The movable machine according to claim 4, wherein the computing device or the processing device diagnoses a state of the battery unit based on the history of motion information, the motion information being detected by the detector before mounting of the battery pack on the movable machine. ### Claim 6 (depends on 4) The movable machine according to claim 4, further comprising a display device configured to display a result of diagnosis made by the computing device or the processing device for a state of the battery unit. ### Claim 7 (depends on 4) The movable machine according to claim 4, further comprising a battery placement portion in which the battery pack is placed with the memory device electrically connected to the computing device via the communication connector, wherein the battery placement portion is configured so that the detector of the battery pack placed in the battery placement portion is located in a central region of the movable machine in a leftward/rightward direction. ### Claim 8 (depends on 4) The movable machine according to claim 4, further comprising a battery placement portion in which the battery pack is placed with the memory device electrically connected to the computing device via the communication connector, wherein the detector has a sensor coordinate system having three axes orthogonal to one another and detects the motion of the battery unit with respect to the sensor coordinate system, and the battery placement portion is configured so that the three axes of the sensor coordinate system of the detector of the battery pack placed in the battery placement portion are respectively parallel to a forward/rearward direction, a leftward/rightward direction, and an upward/downward direction of the movable machine. ### Claim 9 (depends on 1) The battery pack according to claim 1, wherein the detector has a sensor coordinate system having three axes orthogonal to one another and detects the motion of the battery unit with respect to the sensor coordinate system, and the processing device causes the memory device to record the history of motion information detected by the detector in directions of the three axes and calculates impact forces applied to the battery unit in the directions of the three axes based on the history of motion information detected in the directions of the three axes. ### Claim 10 (depends on 1) The battery pack according to claim 1, wherein the detector includes an acceleration sensor and an angular velocity sensor. ### Claim 11 (depends on 1) The battery pack according to claim 1, wherein the detector includes: a triaxial acceleration sensor that detects accelerations in directions of three axes orthogonal to one another; and a triaxial angular velocity sensor that detects angular velocities about the three axes orthogonal to one another. ### Claim 12 (depends on 1) The battery pack according to claim 1, further comprising an electrical supply connector independent of the communication connector, the electrical supply connector being electrically connected to the battery unit to supply electricity from an outside of the battery pack to the battery unit or supply electricity from the battery unit to the outside of the battery pack. ### Claim 13 A battery pack configured to be removably mounted on a vehicle body of a movable machine, the vehicle body including a vehicle controller, the battery pack comprising: a rechargeable battery unit; a detector secured to the battery unit to detect a motion of the battery unit; a battery monitoring unit including a memory device and a processing device configured to record a history of motion information detected by the detector in the memory device; a communication connector configured to communicatively connect the battery monitoring unit to the vehicle controller and output the motion information recorded in the memory device to the vehicle controller; and an electrical supply connector independent of the communication connector, the electrical supply connector being electrically connected to the battery unit to supply electricity from an outside of the battery pack to the battery unit or supply electricity from the battery unit to the outside of the battery pack.