System and operating method for level regulation of a driver's cab of a commercial vehicle relative to the chassis of the vehicle
First Claim
1. A system for regulating a level of a driver'"'"'s cab of a commercial vehicle relative to a vehicle chassis, comprising:
- a spring-loaded bearing for supporting the driver'"'"'s cab on the vehicle chassis, the spring-loaded bearing comprising a plurality of spring elements including pneumatic or hydraulic spring elements, each of the spring elements having a valve for variable supply of the each of the spring elements with a pressure-generating medium, and a supply unit supplying the pressure-generating medium for the spring elements;
a distance sensor configured to record at least one of relative movements and a distance between the driver'"'"'s cab and the vehicle chassis;
a distributed control device with regulators disposed on the valves of the spring elements, each of the regulators independently controlling a respective one of the valves of the spring-loaded bearing based on a signal received from the distance sensor;
wherein the spring-loaded bearing is adjustable to a first height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by the distributed control device to a first target distance, and a second height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by the distributed control device to a second target distance that is different from the first target distance,wherein each of the regulators of the distributed control device receives a signal indicating a measurement value of at least one parameter relating to a driving route of the commercial vehicle and adjusts the respective one of the valves to position the spring-loaded bearing to the first height position or the second height position in response to the measurement value of the at least one parameter, andwherein, if one of the spring elements is not compressed to the adjusted target distance, one of the regulators corresponding to the one of the spring elements controls the level of the pressure medium of the one of the spring elements by the valve disposed on the one of the regulators such that the one of the spring elements is again compressed to the adjusted target distance.
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Accused Products
Abstract
A system for level regulation of a driver'"'"'s cab of a commercial vehicle relative to a chassis of the vehicle includes a spring-loaded bearing in order to support the driver'"'"'s cab in a sprung manner on the chassis of the vehicle; a distance sensor device arranged to record relative movements and/or a distance between the driver'"'"'s cab and the chassis of the vehicle; and a control device that is arranged for variable control of the spring-loaded bearing, wherein signals of the distance sensor device are used to control the spring-loaded bearing. The spring-loaded bearing can be adjusted to a first height position (h1), so that the distance between the driver'"'"'s cab and the chassis of the vehicle is controlled by the control device to a first target distance. The spring-loaded bearing can be adjusted to at least one second height position (h2), so that the distance between the driver'"'"'s cab and the chassis of the vehicle is controlled by the control means to a second target distance. The control means device adjusts the spring-loaded bearing to the first height position (h1) or to the at least one second height position (h2) depending at least on a parameter relating to a driving route and/or a vehicle state.
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Citations
11 Claims
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1. A system for regulating a level of a driver'"'"'s cab of a commercial vehicle relative to a vehicle chassis, comprising:
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a spring-loaded bearing for supporting the driver'"'"'s cab on the vehicle chassis, the spring-loaded bearing comprising a plurality of spring elements including pneumatic or hydraulic spring elements, each of the spring elements having a valve for variable supply of the each of the spring elements with a pressure-generating medium, and a supply unit supplying the pressure-generating medium for the spring elements; a distance sensor configured to record at least one of relative movements and a distance between the driver'"'"'s cab and the vehicle chassis; a distributed control device with regulators disposed on the valves of the spring elements, each of the regulators independently controlling a respective one of the valves of the spring-loaded bearing based on a signal received from the distance sensor; wherein the spring-loaded bearing is adjustable to a first height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by the distributed control device to a first target distance, and a second height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by the distributed control device to a second target distance that is different from the first target distance, wherein each of the regulators of the distributed control device receives a signal indicating a measurement value of at least one parameter relating to a driving route of the commercial vehicle and adjusts the respective one of the valves to position the spring-loaded bearing to the first height position or the second height position in response to the measurement value of the at least one parameter, and wherein, if one of the spring elements is not compressed to the adjusted target distance, one of the regulators corresponding to the one of the spring elements controls the level of the pressure medium of the one of the spring elements by the valve disposed on the one of the regulators such that the one of the spring elements is again compressed to the adjusted target distance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An operating method for regulating a driver'"'"'s cab of a commercial vehicle relative to a vehicle chassis, comprising the steps:
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recording at least one of a relative movement and a distance between the driver'"'"'s cab and the vehicle chassis; adjusting a spring-loaded bearing that supports the driver'"'"'s cab in a sprung manner on the vehicle chassis based on the recorded at least one of a relative movement and a distance between the driver'"'"'s cab and the vehicle chassis, the spring-loaded bearing comprising a plurality of spring elements including pneumatic or hydraulic spring elements, each of the spring elements having a valve for variable supply of the each of the spring elements with a pressure-generating medium, and a supply unit supplying the pressure-generating medium for the spring elements, wherein the spring-loaded bearing is adjustable to a first height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by a distributed control device to a first target distance, and a second height position, where a distance between the driver'"'"'s cab and the vehicle chassis is controlled by the distributed control device to a second target distance that is different from the first target distance; and adjusting the spring-loaded bearing to the first height position or the second height position in response to a measured value of at least one parameter relating to a driving route of the commercial vehicle, the distributed control device including regulators disposed on the valves of the spring elements, each of the regulators independently controlling a respective one of the valves, the each of the regulators receiving a signal indicating the measured value of at least one parameter relating to a driving route of the commercial vehicle and adjusting the respective one of the valves to position the spring-loaded bearing to the first height position or the second height position in response to the measured value, and wherein, if one of the spring elements is not compressed to the adjusted target distance, one of the regulators corresponding to the one of the spring elements controls the level of the pressure medium of the one of the spring elements by the valve disposed on the one of the regulators such that the one of the spring elements is again compressed to the adjusted target distance.
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Specification