Controlling vehicles at a charging station

Patent metadata

Field	Value
Publication number	US-12240341-B1
Application number	US-202117364297-A
Country	US
Kind code	B1
Filing date	Jun 30, 2021
Priority date	Jun 30, 2021
Publication date	Mar 4, 2025
Grant date	Mar 4, 2025

Abstract

A dense charging station for charging the battery may have lanes arranged in parallel, and each of the lanes may have sequential charging locations. A vehicle utilizing the charging station may position itself at the first available charging location, being receiving energy, and determine if a subsequent charging station becomes available in the lane, and then position itself at the subsequent charging location, once available. Multiple charging stations may be required to maintain a threshold power state for individual vehicles in a fleet of vehicles providing a service for a geographic region. A charging coordinator may determine when a battery of a vehicle does not satisfy a threshold power state and requires a recharge. Additionally, the charging coordinator may determine a candidate charging station from among multiple charging stations associated with the geographic region.

First claim

What is claimed is:

1. A method of charging a power storage unit of a vehicle, the method comprising:
determining a first charge location of a lane of a charging station;
controlling the vehicle to enter the lane and position the vehicle at the first charge location;
receiving energy from a first charge component at the first charge location to charge the power storage unit of the vehicle;
determining that a second charge location of the lane is available, the second charge location being subsequent to the first charge location;
controlling the vehicle to position the vehicle at the second charge location;
receiving the energy from a second charge component at the second charge location to charge the power storage unit of the vehicle;
determining that a charge state of the power storage unit satisfies a first threshold charge state;
determining that the first charge location of the lane is available; and
controlling the vehicle to remain at the second charge location until the charge state of the power storage unit satisfies a second threshold charge state, the second threshold charge state being greater than the first threshold charge state, wherein controlling the vehicle to remain at the second charge location is based at least in part on the first charge location of the lane being available.

2. The method of claim 1 , further comprising:
determining that the first charge location of the lane is occupied by an additional vehicle;
based at least in part on determining that the first charge location of the lane is occupied by the additional vehicle, ceasing to receive energy from the second charge component; and
controlling the vehicle to travel from the second charge location to an exit of the lane.

3. The method of claim 1 , wherein the lane is a first lane and the first lane is associated with a first range of vehicle charge states, and the charging station further comprises a second lane associated with a second range of vehicle charge states, and the method further comprising:
determining a current charge state of the power storage unit of the vehicle;
determining that the current charge state of the power storage unit is within the first range of vehicle charge states; and
controlling the vehicle to enter the first lane of the charging station based at least in part on determining that the current charge state of the power storage unit is within the first range of vehicle charge states.

4. The method of claim 1 , wherein the lane is a first lane, and the method further comprising:
determining a current charge state of the power storage unit of the vehicle;
determining, via one or more sensors associated with the vehicle, a first estimated charge time associated with the first lane based at least in part on a first number of vehicles occupying the first lane and a first number of charge locations disposed in the first lane;
determining, via the one or more sensors, a second estimated charge time associated with a second lane of the charging station based at least in part on a second number of vehicles occupying the second lane and a second number of charge locations disposed in the second lane;
determining, based at least in part on the first estimated charge time, the second estimated charge time, and the current charge state of the power storage unit, that the first lane is more favorable than the second lane; and
controlling the vehicle to enter the first lane based at least in part on determining that the first lane is more favorable than the second lane.

5. The method of claim 1 , further comprising determining that the second charge location of the lane is available based at least in part on at least one of:
sensor data captured by one or more sensors associated with the vehicle; or
a signal received from the charging station, the signal indicating that the second charge location of the lane is available.

6. The method of claim 1 , wherein the first charge component comprises a first induction coil, and the method further comprising:
receiving a signal indicating the first induction coil of the first charge location is proximate to a second induction coil of the vehicle;
transmitting, by a microcontroller and based at least partly on the signal being received, a message to a direct current (DC) fast charger pursuant to a signaling protocol;
receiving, from the DC fast charger, a DC;
converting the DC to an alternating current (AC);
transmitting the AC to the first induction coil to induce a current in the second induction coil of the vehicle; and
wherein receiving the energy from the first charge component is based at least in part on inducing the current in the second induction coil of the vehicle.

7. The method of claim 1 , further comprising:
prior to receiving the energy from the first charge component, controlling a suspension system of the vehicle to lower first electrically conductive contacts of the vehicle toward second electrically conductive contacts of the first charge component;
receiving the energy from the first charge component based at least in part on the first electrically conductive contacts of the vehicle contacting the second electrically conductive contacts of the first charge component;
based at least in part on determining that the second charge location is available, controlling the suspension system of the vehicle to raise the first electrically conductive contacts of the vehicle away from the second electrically conductive contacts of the first charge component; and
based at least in part on the first electrically conductive contacts of the vehicle distancing from the second electrically conductive contacts of the first charge component, ceasing to receive energy from the first charge component.

8. A method of charging a power storage unit of a vehicle, the method comprising:
determining a first charge location of a lane of a charging station;
controlling the vehicle to enter the lane and position the vehicle at the first charge location;
receiving energy from a first charge component at the first charge location to charge the power storage unit of the vehicle;
determining that a second charge location of the lane is available, the second charge location being subsequent to the first charge location;
controlling the vehicle to position the vehicle at the second charge location;
receiving the energy from a second charge component at the second charge location to charge the power storage unit of the vehicle;
determining, while the vehicle is positioned at the second charge location, that a charge state of the power storage unit satisfies a first threshold charge state;
determining, while the vehicle is positioned at the second charge location, that the first charge location of the lane is occupied by an additional vehicle;
based at least in part on determining that the first charge location of the lane is occupied by the additional vehicle, ceasing to receive energy from the second charge component; and
controlling the vehicle to travel from the second charge location to an exit of the lane.

9. One or more non-transitory computer-readable media storing instructions executable by a processor, wherein the instructions, when executed, cause the processor to perform operations comprising:
determining a first charge location of a lane of a charging station;
controlling a vehicle to enter the lane and position the vehicle at the first charge location;
receiving energy from a first charge component at the first charge location to charge a power storage unit of the vehicle;
determining that a second charge location of the lane is available, the second charge location being subsequent to the first charge location;
controlling the vehicle to pos

Assignees

• Zoox Inc

Inventors

• Pathipati Vamsi Krishna

Classifications

• B60L2260/32

  Auto pilot mode · CPC title

• B60L53/68

  Off-site monitoring or control, e.g. remote control · CPC title

• B60L2240/68

  Traffic data · CPC title

• B60L53/126

  Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver · CPC title

• B60L53/67

  Controlling two or more charging stations · CPC title