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Hierarchical control system and method for a tandem axle drive system

A technology of hierarchical control, controller, applied in the direction of engine control, control device, transportation and packaging, etc.

Active Publication Date: 2015-07-15
DANA HEAVY VEHICLE SYSTEMS GROUP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite the benefit of improved traction, the fuel economy of a vehicle including a 6x4 tandem axle assembly is generally lower than that of a vehicle including a 6x2 tandem axle assembly

Method used

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  • Hierarchical control system and method for a tandem axle drive system
  • Hierarchical control system and method for a tandem axle drive system
  • Hierarchical control system and method for a tandem axle drive system

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Embodiment Construction

[0028] It should be understood that the invention may assume various alternative orientations and step sequences, except where expressly stated to the contrary. It should also be understood that the particular devices and processes shown in the drawings and described in the following specification are merely exemplary embodiments of the inventive concepts defined herein. Accordingly, references to particular dimensions, orientations, or other physical characteristics of the disclosed embodiments are not to be considered limiting unless expressly stated otherwise.

[0029] figure 1 Vehicle driveline 100 is shown fitted with tandem axle assembly 102 . The tandem axle assembly 102 includes a dual range axle uncoupling system 104 . The tandem shaft assembly 102 is operable with a first gear ratio and a second gear ratio. The dual-range axle disengagement system 104 includes a planetary inner axle differential 106 (hereinafter abbreviated as PIAD, as figure 2 ), the different...

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Abstract

A hierarchical control system for a tandem axle assembly for a vehicle is provided. The hierarchical control system includes a vehicle level controller, an actuator, a shift controller, and a sensor. The shift controller is capable of placing the tandem axle assembly in at least a first operating condition and a second operating condition using the actuator. In response to the sensor and an operating condition of at least one of the power source and the transmission of the vehicle, the shift controller adjusts a manner of placing the tandem axle assembly in at least one of the first operating condition and the second operating condition. The hierarchical control system facilitates performing a shifting procedure in an automatic manner or as desired by an operator of the vehicle without excessively increasing a cost and a complexity of the tandem axle assembly.

Description

[0001] claim priority [0002] This application claims priority to the following provisional patent applications: U.S. Provisional Patent Application No. 61 / 721,589, filed November 2, 2012, and U.S. Provisional Patent Application No. 61 / 794,302, filed March 15, 2013, herein They are incorporated by reference in their entirety. technical field [0003] The present invention relates to a vehicle control system, in particular to a control system for a tandem axle (tandem axle) driven vehicle. Background technique [0004] Tandem axle assemblies are widely used on trucks and other loading vehicles. A tandem axle assembly typically includes a front axle and a rear axle. When the front and rear axles are drivingly engaged, the tandem axle assembly may be referred to as a 6x4 tandem axle assembly. When either of the front and rear axles are drivingly engaged, the tandem axle assembly may be referred to as a 6x2 tandem axle assembly. [0005] For road conditions where traction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K23/08B60K17/36B60W50/00
CPCY10T477/688B60K23/08B60W10/04B60W10/10B60W2050/0006B60K17/36B60K2023/0858B60W10/14B60W30/182B60W40/105B60W2520/28B60W2710/12B60W2510/12B60W2300/147
Inventor R·A·内鲁姆斯A·苏里亚纳拉亚南S·A·乔希S·C·克里希南D·G·斯迈德利R·K·马克维切S·伦伽纳坦S·J·维索罗斯基
Owner DANA HEAVY VEHICLE SYSTEMS GROUP LLC
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