drive unit for vehicle

A drive device and wheel drive technology, which is applied in the direction of electric devices, power devices, transmission devices, etc., can solve the problems of how to control the first and second electric motors without specific records, and the deterioration of driving stability, so as to reduce state changes, The effect of suppressing state changes

Active Publication Date: 2016-03-23
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the vehicle drive device described in Patent Document 1, there is no specific description of how to control the first and second electric motors when the brake mechanism is switched from the state where the brake mechanism is engaged to the state where the brake mechanism is disengaged.
When disengaging the brake mechanism from the state where the brake mechanism is engaged, if the first and second electric motors are not reliably controlled, driving stability may be deteriorated

Method used

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  • drive unit for vehicle
  • drive unit for vehicle
  • drive unit for vehicle

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Embodiment Construction

[0063] First, based on Figure 1 ~ Figure 3 , an embodiment of the vehicle drive device of the present invention will be described.

[0064] The driving device for a vehicle of the present invention uses an electric motor as a drive source for driving an axle, and is used, for example, in figure 1 A vehicle with a drive system as shown. In the following description, the case where the vehicle driving device is used for driving the rear wheels will be described as an example, but it may also be used for driving the front wheels.

[0065] figure 1 The vehicle 3 shown is a hybrid vehicle, and has a driving device 6 (hereinafter, referred to as a front-wheel drive device) in which an internal combustion engine 4 and an electric motor 5 are connected in series at the front of the vehicle. The front wheels Wf transmit power to the rear wheels Wr (RWr, LWr) of a drive device 1 (hereinafter referred to as a rear wheel drive device) provided separately from the front wheel drive dev...

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Abstract

The first transmission (12A) and the second transmission (12B) are connected to the first electric motor (2A) driving the left wheel of the vehicle and the second electric motor (2B) driving the right wheel. 12A) and the hydraulic brakes (60A, 60B) for braking the rotation of the internal gears (24A, 24B) of the second transmission (12B) are controlled from the engaged state to the disengaged state to maintain the first electric motor (2A) and the second The first electric motor (2A) and the second electric motor (2B) are controlled in such a manner that the torque difference of the electric motor (2B) is close to zero.

Description

technical field [0001] The present invention relates to a vehicle drive system provided with a left wheel drive device for driving a left wheel and a right wheel drive device for driving a right wheel. Background technique [0002] Patent Document 1 describes a vehicle drive device that includes a left wheel drive device and a right wheel drive device. The left wheel drive device has a first motor that drives the left wheel of the vehicle, A first planetary gear type transmission on a power transmission path of the left wheel, the right wheel driving device has a second electric motor driving the right wheel of the vehicle and a second planetary gear provided on a power transmission path between the second electric motor and the right wheel gear transmission. The first and second planetary gear transmissions are respectively connected to the first and second motors on the sun gear, respectively connected to the left wheel and the right wheel on the planetary gear carrier, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/08B60K6/44B60K6/52B60K6/54B60K7/00B60L11/14B60L15/20B60W10/10B60W20/00F16H48/36B60L50/15B60L50/16
CPCB60K6/44B60K6/52B60K6/54B60K7/0007B60L15/20B60W10/08B60W10/188B60W10/30B60W20/00B60W2710/08B60W2710/18B60W2710/30B60L7/12B60L7/26B60L15/2009B60L15/2036B60L2220/46B60L2240/12B60L2240/24B60L2240/421B60L2240/423B60L2240/461B60L2240/486B60W2710/083B60K6/448B60K17/046B60K2007/0092B60W2720/406B60K17/356B60L2260/26B60W30/18127B60W2540/12B60L50/61B60L50/16B60L58/12B60K2007/0046B60Y2400/427Y10S903/93Y02T10/62Y02T10/64Y02T10/70Y02T10/7072Y02T10/72B60W10/16B60K17/165B60K2023/043F16H48/06
Inventor 安藤聪筱原势
Owner HONDA MOTOR CO LTD
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