Drive system for a vehicle
US-2023001786-A1 · Jan 5, 2023 · US
Vehicle drive system
US2021300321A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021300321-A1 |
| Application number | US-201917262222-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 24, 2019 |
| Priority date | Jul 31, 2018 |
| Publication date | Sep 30, 2021 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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Abstract
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A vehicle drive system uses an in-wheel motor and has: a vehicle speed sensor; an in-wheel motor that is provided to a wheel of the vehicle and drives the wheel; an internal combustion engine that is provided in a vehicle body of the vehicle and drives the wheel; and control equipment that controls the in-wheel motor and the internal combustion engine. The control equipment causes the internal combustion engine to generate drive power and causes the in-wheel motor not to generate the drive power when the travel speed of the vehicle detected by the vehicle speed sensor is lower than a specified vehicle speed that is higher than zero. The internal combustion engine and the in-wheel motor generate the drive power in the case where the travel speed of the vehicle detected by the vehicle speed sensor is equal to or higher than the specified vehicle speed.
First claim
Opening claim text (preview).
1 . A vehicle drive system using an in-wheel motor for driving a vehicle, the vehicle drive system comprising: a vehicle speed sensor that detects a travel speed of the vehicle; the in-wheel motor that is provided to a wheel of the vehicle and drives the wheel; an internal combustion engine that is provided in a vehicle body of the vehicle and drives the wheel; and control equipment that controls the in-wheel motor and the internal combustion engine, wherein the control equipment is configured to cause the internal combustion engine to generate drive power and cause the in-wheel motor not to generate the drive power when the travel speed of the vehicle detected by the vehicle speed sensor is lower than a specified vehicle speed that is higher than zero, and wherein the control equipment is further configured to cause the internal combustion engine and the in-wheel motor to generate the drive power in the case where the travel speed of the vehicle detected by the vehicle speed sensor is equal to or higher than the specified vehicle speed. 2 . The vehicle drive system according to claim 1 , wherein the in-wheel motor is configured to directly drive the wheel, to which the in-wheel motor is provided, without a deceleration mechanism being interposed. 3 . The vehicle drive system according to claim 1 , wherein the in-wheel motor is an induction motor. 4 .- 9 . (canceled) 10 . The vehicle drive system according to claim 2 , wherein the in-wheel motor is an induction motor. 11 . The vehicle drive system according to claim 1 , wherein the control equipment is configured to cause the internal combustion engine to generate the drive power and thereby cause the vehicle to start moving and, when the travel speed of the vehicle detected by the vehicle speed sensor reaches the specified vehicle speed, to cause the in-wheel motor to generate the drive power. 12 . The vehicle drive system according to claim 2 , wherein the control equipment is configured to cause the internal combustion engine to generate the drive power and thereby cause the vehicle to start moving and, when the travel speed of the vehicle detected by the vehicle speed sensor reaches the specified vehicle speed, to cause the in-wheel motor to generate the drive power. 13 . The vehicle drive system according to claim 3 , wherein the control equipment is configured to cause the internal combustion engine to generate the drive power and thereby cause the vehicle to start moving and, when the travel speed of the vehicle detected by the vehicle speed sensor reaches the specified vehicle speed, to cause the in-wheel motor to generate the drive power. 14 . The vehicle drive system according to claim 10 , wherein the control equipment is configured to cause the internal combustion engine to generate the drive power and thereby cause the vehicle to start moving and, when the travel speed of the vehicle detected by the vehicle speed sensor reaches the specified vehicle speed, to cause the in-wheel motor to generate the drive power. 15 . The vehicle drive system according to claim 1 , wherein the in-wheel motor is configured to drive a front wheel of the vehicle, and the internal combustion engine is configured to drive a rear wheel of the vehicle. 16 . The vehicle drive system according to claim 2 , wherein the in-wheel motor is configured to drive a front wheel of the vehicle, and the internal combustion engine is configured to drive a rear wheel of the vehicle. 17 . The vehicle drive system according to claim 1 , wherein the in-wheel motor is configured to drive a rear wheel of the vehicle, and the internal combustion engine is configured to drive a front wheel of the vehicle. 18 . The vehicle drive system according to claim 2 , wherein the in-wheel motor is configured to drive a rear wheel of the vehicle, and the internal combustion engine is configured to drive a front wheel of the vehicle. 19 . The vehicle drive system according to claim 1 , wherein the in-wheel motor and the internal combustion engine are configured to drive a front wheel of the vehicle. 20 . The vehicle drive system according to claim 2 , wherein the in-wheel motor and the internal combustion engine are configured to drive a front wheel of the vehicle. 21 . The vehicle drive system according to claim 1 , wherein the in-wheel motor and the internal combustion engine are configured to drive a rear wheel of the vehicle. 22 . The vehicle drive system according to claim 2 , wherein the in-wheel motor and the internal combustion engine are configured to drive a rear wheel of the vehicle. 23 . A vehicle drive system using an in-wheel motor for driving a vehicle, the vehicle drive system comprising: a vehicle speed sensor that detects a travel speed of the vehicle; the in-wheel motor that is provided to a wheel of the vehicle and drives the wheel; an internal combustion engine that is provided in a vehicle body of the vehicle and drives the wheel; and control equipment that controls the in-wheel motor and the internal combustion engine, wherein the control equipment is configured to cause the internal combustion engine to generate drive power and thereby cause the vehicle to start moving and, when the travel speed of the vehicle detected by the vehicle speed sensor reaches a specified vehicle speed that is higher than zero, to cause the in-wheel motor to generate the drive power.
Assignees
Inventors
Classifications
Accelerator pedal position · CPC title
Electric machine connected or connectable to gearbox input shaft · CPC title
characterised by the electric energy storing means, e.g. batteries or capacitors · CPC title
including control of electric propulsion units, e.g. motors or generators · CPC title
Super-capacities · CPC title
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Frequently asked questions
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- What does patent US2021300321A1 cover?
- A vehicle drive system uses an in-wheel motor and has: a vehicle speed sensor; an in-wheel motor that is provided to a wheel of the vehicle and drives the wheel; an internal combustion engine that is provided in a vehicle body of the vehicle and drives the wheel; and control equipment that controls the in-wheel motor and the internal combustion engine. The control equipment causes the internal …
- Who is the assignee on this patent?
- Mazda Motor
- What technology area does this patent fall under?
- Primary CPC classification B60K6/48. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Sep 30 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).