PATENT CLAIM ANALYSIS

Application Number: 15743478
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["060", "624000"]

Abstract:
The invention relates to a method for controlling a waste-heat utilization system ( 20 ) for a motor vehicle driven by an internal combustion engine ( 10 ) by means of a drive train ( 13 ), wherein the waste-heat utilization system ( 20 ) has at least one expander ( 22 ), at least one evaporator ( 21 ), and at least one pump ( 24 ) for an operating medium, in particular ethanol. At least the evaporator ( 21 ) is arranged in the region of the exhaust gas system ( 11 ) of the internal combustion engine ( 10 ). The expander ( 22 ), which can be operated in several operating modes, performs work in at least one operating mode. One operating mode of at least two operating modes ( 1, 2, 4, 5 ) of the expander ( 22 ) is selected by a control device ( 30 ) on the basis of at least one input variable from the group of expander rotational speed (n), gear information (GI), coasting information (CI), and pressure (p 1 , p 2 ) and temperature (T 1 , T 2 ) of the operating medium upstream or downstream of the expander ( 22 ) and the expander ( 22 ) is operated in said operating mode. A first operating mode ( 1 ) is associated with a warm-up phase of the expander ( 22 ) and a second operating mode ( 2 ) is associated with a normal operating phase of the expander ( 22 ). The bypass valve ( 26 ) is opened in the first operating mode ( 1 ) and closed in the second operating mode. The second operating mode ( 2 ) is selected if the pressure (p 2 ) and/or the temperature (T 2 ) of the operating medium downstream of the expander ( 22 ) exceeds a defined value.

Claim (Index 1):
A method for controlling a waste heat utilization system for a motor vehicle driven by an internal combustion engine via a drive train, wherein the waste heat utilization system comprises at least one expander, at least one evaporator and at least one pump for an operating means, in particular ethanol, and wherein at least the evaporator is disposed in the region of the exhaust gas system of the internal combustion engine, wherein the expander, which can be operated in several operating modes, delivers work in at least one operating mode and wherein on the basis of at least one input quantity from the group expander speed, gear information, coasting information, pressure and temperature of the operating means upstream of the expander and/or pressure and temperature downstream of the expander, respectively one operating mode is selected from at least two operating modes of the expander by the control device, and the expander is operated in this operating mode, preferably by triggering at least one bypass valve of the expander disposed in a bypass flow path of the expander, wherein a first operating mode is assigned to a warm-up phase of the expander and a second operating mode is assigned to a normal operating phase of the expander, and wherein in the first operating mode the bypass flow path is opened, and wherein in the second operating mode the bypass flow path is closed, and wherein the second operating mode is selected when the pressure and/or the temperature of the operating means exceeds a defined value downstream of the expander.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 86.0
- Lexical Diversity: 3.03509
- Patent Class: 60.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13061513', '13824947', '14383283', '15315776', '13125089']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7521015335104763
- 35 USC 102 Novelty (BERT): 0.479461811293037
- Combined Prediction Score: 0.7248375612887323
- Mean Citation Score: 229.711562
- Max Citation Score: 241.47751
- Similarity Product: 191.127197150296

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test